Update slack link

Author: miharekar

CONTRIBUTING.md

@@ -17,4 +17,4 @@ We love pull requests from everyone. Follow the Contributor Covenant [code of co
 
 At this point you're waiting on us. We like to at least comment on, if not accept, pull requests within three business days (and, typically, one business day). We may suggest some changes or improvements or alternatives.
 
-If you have further questions, contact us on [Slack](http://slack.rug.si/).
+If you have further questions, contact us on [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).

README.md

@@ -2,7 +2,7 @@
 
 Source code for [Slovenia Ruby User Group](http://www.rug.si/) page. [Contributions welcome](CONTRIBUTING.md)!
 
-Join us on Slack: [![Slovenia Ruby User Group Slack](http://slack.rug.si/badge.svg)](http://slack.rug.si/)
+Join us on Slack: [Slovenia Ruby User Group Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg)
 
 ## Setup
 

_config.yml

@@ -12,10 +12,9 @@ encoding: utf-8
 
 social:
   meetup: http://www.meetup.com/RubySlovenia/
-  twitter: https://www.twitter.com/RubySlovenia/
   facebook: https://www.facebook.com/groups/RubySlovenia/
   github: https://github.com/RubySlovenia
-  slack: http://slack.rug.si/
+  slack: https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg
 
 email: info@rug.si
 

_posts/2015-05-04-march-meetup-recap.markdown

@@ -17,4 +17,4 @@ Second presenter was [Matic Jurglič](http://jurglic.si/) from [D·Labs](http://
 
 Video recording was generously done by team from [V Živo](http://www.vzivo.si/).
 
-That was it for March. Join us on our [next event](http://www.meetup.com/RubySlovenia/)! In the mean time you should follow us on [Twitter](https://twitter.com/RubySlovenia) and join us on [Facebook](https://www.facebook.com/groups/RubySlovenia/) and [Slack](http://slack.rug.si/).
+That was it for March. Join us on our [next event](http://www.meetup.com/RubySlovenia/)! In the mean time you should follow us on [Twitter](https://twitter.com/RubySlovenia) and join us on [Facebook](https://www.facebook.com/groups/RubySlovenia/) and [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).

_posts/2016-01-28-january-meetup-recap.md

@@ -19,7 +19,7 @@ The event was unofficially continued with free drinks and many interesting conve
 
 Thanks everyone for coming, thanks to [Toptal](http://www.toptal.com) for free drinks and to [Poligon](http://www.poligon.si/) for sharing their space with us. Together we are probably making the best software community in Slovenia! High five!
 
-You should join us on our [next event](http://www.meetup.com/RubySlovenia/)! If you can't wait, you can find us on [Slack](http://slack.rug.si/).
+You should join us on our [next event](http://www.meetup.com/RubySlovenia/)! If you can't wait, you can find us on [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).
 
 <div class="gallery">
   <img src="/assets/img/posts/2016-01-28_meetup.jpg" alt="Ruby meetup - January 2016">

_posts/2016-02-25-februar-recap.md

@@ -17,4 +17,4 @@ After the presentation it almost felt like many of the attendees went home to im
 
 All in all it was another great event. Thanks everyone for coming and thanks to our sponsors - [Toptal](http://www.toptal.com), [V Živo](http://www.vzivo.si/) and [Poligon](http://www.poligon.si/) - who make events like this possible.
 
-As always make sure you bookmark [our meetup page](http://www.meetup.com/RubySlovenia/) so you won't miss our next event. If you feel like chatting you're welcome to join our [Slack group](http://slack.rug.si/).
+As always make sure you bookmark [our meetup page](http://www.meetup.com/RubySlovenia/) so you won't miss our next event. If you feel like chatting you're welcome to join our [Slack group](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).

_posts/2016-03-31-march-meetup-recap.md

@@ -5,7 +5,7 @@ author: danes
 bg_photo: /assets/img/posts/2016-03-31-meetup-2.jpg
 ---
 
-March brought us springtime, sunshine, and another Ruby meetup. 
+March brought us springtime, sunshine, and another Ruby meetup.
 
 [Lenart Rudel](https://github.com/lenart) presented [Hanami](http://hanamirb.org), a fresh take on web development in Ruby. Hanami is an alternative web framework that focuses on simplicity, performance, explicitness over magic, object-oriented architecture and testability. He discussed the differences between Rails and Hanami, its benefits, the viability of using it in production, and some code examples.
 
@@ -21,24 +21,24 @@ After the talks, beers were had and opinions were exchanged.
 
 Thanks everyone for coming! We'd also like to thank our sponsors [Toptal](http://www.toptal.com), [Poligon](http://www.poligon.si) and [V živo](http://vzivo.si).
 
-See you [next time](http://www.meetup.com/RubySlovenia/)! In the meantime, we can also chat on our [Slack](http://slack.rug.si/).
+See you [next time](http://www.meetup.com/RubySlovenia/)! In the meantime, we can also chat on our [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).
 
 <div class="gallery">
   <a href="/assets/img/posts/2016-03-31-meetup-1.jpg" target="_blank">
     <img src="/assets/img/posts/2016-03-31-meetup-1.jpg" alt="Ruby meetup - March 2016">
   </a>
-  
+
   <a href="/assets/img/posts/2016-03-31-meetup-2.jpg" target="_blank">
     <img src="/assets/img/posts/2016-03-31-meetup-2.jpg" alt="Ruby meetup - March 2016">
   </a>
-  
+
   <a href="/assets/img/posts/2016-03-31-meetup-3.jpg" target="_blank">
     <img src="/assets/img/posts/2016-03-31-meetup-3.jpg" alt="Ruby meetup - March 2016">
   </a>
-  
+
   <a href="/assets/img/posts/2016-03-31-meetup-4.jpg" target="_blank">
     <img src="/assets/img/posts/2016-03-31-meetup-4.jpg" alt="Ruby meetup - March 2016">
   </a>
 
   <small>Photos by Miha Rekar</small>
-</div>
+</div>

_posts/2016-05-26-may-meetup-recap.md

@@ -28,7 +28,7 @@ Tradition dictates, to have a beer after the talks. We mostly obey.
 
 Thanks everyone for coming! We'd also like to thank our sponsors [Toptal](http://www.toptal.com), [Poligon](http://www.poligon.si) and [V živo](http://vzivo.si).
 
-See you [next time](http://www.meetup.com/RubySlovenia/)! In the meantime, we can also chat on our [Slack](http://slack.rug.si/).
+See you [next time](http://www.meetup.com/RubySlovenia/)! In the meantime, we can also chat on our [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).
 
 <div class="gallery">
   <a href="/assets/img/posts/2016-05-26-meetup-1.jpg" target="_blank">
@@ -40,4 +40,4 @@ See you [next time](http://www.meetup.com/RubySlovenia/)! In the meantime, we ca
   </a>
 
   <small>Photos by Miha Rekar</small>
-</div>
+</div>

_posts/2016-09-29-september-meetup.md

@@ -17,11 +17,11 @@ He then recapped a newish proposal called Guilds of organizing code to handle co
 
 After the main talk, there was a shorter talk in which Matija Cankar presented an open source project which his company [XLAB](http://www.xlab.si/) is involved with. It has to do with maintaining a cloud infrastructure over different providers. Our Ruby community being more of a freelancer crowd, we might not have been the perfect audience but who knows when one might need a 200-server cloud, right?
 
-Beers were had, experiences exchanged, new projects thought up (maybe). Good fun, all in all.  
+Beers were had, experiences exchanged, new projects thought up (maybe). Good fun, all in all.
 
 Thanks everyone for coming and thanks to our sponsors - [Toptal](http://www.toptal.com), [Poligon](http://www.poligon.si) and [V živo](http://vzivo.si) - who make events like this possible.
 
-As always make sure you bookmark our meetup page so you won’t miss our [next event](http://www.meetup.com/RubySlovenia/). If you feel like chatting you’re welcome to join our [Slack](http://slack.rug.si/).
+As always make sure you bookmark our meetup page so you won’t miss our [next event](http://www.meetup.com/RubySlovenia/). If you feel like chatting you’re welcome to join our [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).
 
 <div class="gallery">
   <a href="/assets/img/posts/2016-09-29-meetup.jpg" target="_blank">

_posts/2016-10-28-october-meetup.md

@@ -17,7 +17,7 @@ As per tradition, after the talk we had lots of discussions. Of course you can t
 
 Thanks everyone who came and thanks again to our sponsors - [Toptal](http://www.toptal.com) and [Poligon](http://www.poligon.si) who make events like this possible.
 
-As always make sure you bookmark our meetup page so you won’t miss our [next event](http://www.meetup.com/RubySlovenia/). And if you feel like chatting you’re welcome to join our [Slack](http://slack.rug.si/).
+As always make sure you bookmark our meetup page so you won’t miss our [next event](http://www.meetup.com/RubySlovenia/). And if you feel like chatting you’re welcome to join our [Slack](https://join.slack.com/t/rubyslovenia/shared_invite/zt-2sedgruvo-gT0KbZbJegW~rK3Jmln~Lg).
 
 <div class="gallery">
   <a href="/assets/img/posts/2016-10-28-meetup.jpg" target="_blank">