change cheat sheet to link on viash.io (#276)

* change cheat sheet  to link on viash.io

* update changelog

* add png thumbnail

Author: Kai Waldrant

CHANGELOG.md

@@ -54,6 +54,8 @@
 
 * Add VS Code install to requirements page (PR #275).
 
+* changed cheat sheet to link hosted on viash.io (PR #276)
+
 # openproblems.bio v2.2.1
 
 ## BUG FIXES

documentation/more_information/cheat_sheets.qmd

@@ -6,4 +6,4 @@ This page will contain cheat sheets for the most commonly commands and concepts
 
 ## Viash
 
-[![Cheat sheet for developing modular pipeline components with Viash, including a sample Viash component (left) and common commands used throughout the various stages of a development cycle (right).](../images/viash_figure_3.png){#fig-viash-cheat-sheet}](../images/viash_figure_3.pdf)
+[![Cheat sheet for developing modular pipeline components with Viash, including a sample Viash component (left) and common commands used throughout the various stages of a development cycle (right).](https://viash.io/cheatsheet/viash_cheatsheet_latest.html){#fig-viash-cheat-sheet}](https://viash.io/cheatsheet/viash_cheatsheet_v1_1.png)