Item12475: oops, typos

git-svn-id: http://svn.foswiki.org/trunk/core@17353 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12475: updated Debian section for SystemReqs

git-svn-id: http://svn.foswiki.org/trunk/core@17354 0b4bb1d4-4e5a-0410-9cc4-b2b747904278