Known issues for the "about" notice

Summary

The "about" notice in the application should contain information on known issues prior to a release of the package.

These known issues also need to be part of the generated documentation.

Relevant issue(s) fixed

Fixes #252 (closed)

doc/known_issues.rst

@@ -36,13 +36,13 @@ Experiment editor
 
     - The algorithm selection currently does not check for dataformat compatibility
       between blocks.
-      (`Issue 185`_)
+      See (`Issue 185`_)
     - No preview of the toolchain currently available.
-      (`Issue 185`_)
+      See (`Issue 185`_)
     - Smart mapping/filtering to enable smarter algorithm selection based on matching
       input and outputs is not available yet. However the algorithms provided
       are matching the inputs and outputs in terms of its numbers.
-      (`Issue 185`_)
+      See (`Issue 185`_)
 
 
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