plugins: add peerdeps and correct engine to checkPlugins script (#4524)
plugins: add peerdeps and correct engine to checkPlugins script (#4524)

* pere deps example

* fixed by rh

* doh

* doh...
storytouch/etherpad-lite,ether/etherpad-lite,ether/etherpad-lite,ether/etherpad-lite,storytouch/etherpad-lite,storytouch/etherpad-lite