fcl-db: cosmetic fixed for XMLXSD export readme

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25084 3ad0048d-3df7-0310-abae-a5850022a9f2
fcl-db: cosmetic: corrected fpdbexport.pp comments

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25085 3ad0048d-3df7-0310-abae-a5850022a9f2