Moved unwanted changes from grok appendix dir to docs dir.
Revert "Explicit import and removed DisplayForm reference. Gardening and indentation."

This reverts commit e80e7ce2887757b3ddcc22609ee04d2493d04786.
Revert "Removed grok static dir paragraph. Renamed confusing 'resource' to 'static'."

This reverts commit 9cef6822d8fc9524febe09a9e8fe0a47460b6181.