Updated as abandoned

Added "abandoned" flag

Have not and will no longer update Zend Framework (now Laminas) packages. Have not worked with them for quite some time.

Gitattributes to mark PHP as package language on github

Targets github/linguist github repo, used for determining language of repo, by marking included js library as a vendor package

Fixed parsedown version requirement

0.1.1

Updated parsedown required package - incorrect version