Add link to advanced training examples rather than duplicating code
Replace see also by table for the functions reading annotations
Move annotation read examples after annotation function table
Improve table and add paragraph about writing annotations
Add small paragraph about plane conversion before upload onto the server
Add missing newline
Fix typos
Improve description of file annotation utility functions
Use verbatim for references to Pixels/Image object
Fix wording and spelling.
merge dev_4_4 -D org -I include -E exclude: PR 559 (remind that model changes may affect IceMapper (rebased))
merge dev_4_4 -D org -I include -E exclude: PR 570 (Add group and test method execution doc (see #11677) (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 571 (Document latest OMERO.matlab functions (rebased onto dev_4_4))