Fixed grammatical error in CONTRIBUTING.rst

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: h-chmeruk

template/CONTRIBUTING.rst.jinja

@@ -22,7 +22,7 @@ The best place for this is https://github.com/{{ git_username }}/{{ project_slug
 Fix Bugs or Implement Features
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Look through https://github.com/{{ git_username }}/{{ project_slug }}/issues for bugs or feature request
+Look through https://github.com/{{ git_username }}/{{ project_slug }}/issues for bugs or feature requests
 and contact us or comment if you are interested in implementing.
 
 Write Documentation