Move images into repo so we don't have to worry about them breaking in the future (Fixes #259)

Author: bjornstar

.npmignore

@@ -1,8 +1,12 @@
+.appveyor.yml
 .eslintrc
 .eslintcache
+.github
+.husky
 .nyc_output
 .prettierrc
 .travis.yml
+images
 package-lock.json
 test
 test-results.xml

README.md

@@ -66,9 +66,9 @@ npm install -g node-dev
 Status and error messages can be displayed as desktop notification using
 [node-notifier](https://www.npmjs.org/package/node-notifier):
 
-![Screenshot](http://fgnass.github.com/images/node-dev.png)
+![Screenshot](./images/node-dev.png)
 
-![Screenshot](http://fgnass.github.com/images/node-dev-linux.png)
+![Screenshot](./images/node-dev-linux.png)
 
 **Requirements:**