adjust suggestions / recommendations for security support

also reformat file markup
suggested by @rleigh-dundee
remove ambiguous adjective
Tidying up location of git info
Capital G in Git & other tidying
Tidying source code page too
Merge pull request #955 from hflynn/git-tidying

Tidying up location of git info
Merge pull request #953 from mtbc/tweak-server-docs

tweak server docs (rebased from dev_5_0)