Fix typo
Fix dist and distcheck
Update links and status:   more-help.page
Updatde links and status:   get-involved.page
Update links:   mate-terminal.page
Update links and status: about-this-guide.page
Update links and status: about-this-guide-history.page
Add get-involved.page: Makefile.am
Add more-help.page: Makefile.am