Giphy for GitHub gives users the ability to search for GIFs, both textually and by keywords, and find them within one of their accounts. This gives you the ability to post your own GIFs to any forum and have them be recognized by its users.

Additionally, the GitHub integration gives you the ability to add GIFs into a variety of documents, such as pull requests, issues, and other comments. This allows you to more quickly and easily add a GIF to a document.

If you are interested in using it, you can visit the official Giphy website to get the best usage instructions.