$ sudo apt-get update
$ sudo apt-get install gedit-developer-plugins 

gedit-developer-plugins is installed in your system.

Make ensure the gedit-developer-plugins package were installed using the commands given below,

$ sudo dpkg-query -l | grep gedit-developer-plugins *

You will get with gedit-developer-plugins package name, version, architecture and description in a table

gedit-developer-plugins package basic information: