Document known issues

[hovancik]

closes #882
closes #783

[codecov]

Codecov Report

Merging #892 (df0d2d6) into trunk (6009d29) will not change coverage.
The diff coverage is n/a.

❗ Current head df0d2d6 differs from pull request most recent head 0646304. Consider uploading reports for the commit 0646304 to get more accurate results

@@           Coverage Diff           @@
##            trunk     #892   +/-   ##
=======================================
  Coverage   74.62%   74.62%           
=======================================
  Files          14       14           
  Lines         331      331           
=======================================
  Hits          247      247           
  Misses         84       84           

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