Add cljoly/telescope-repo.nvim

[cljoly]

Checklist:

• The plugin is specifically built for Neovim.
• The lines end with a .. This is to conform to awesome-list linting and requirements.
• It's not already on the list.
• If it's a colorscheme, it supports treesitter syntax.
• The title of the pull request is Add `username/repo` when adding a new plugin.

Disclaimer: I’m the author of that plugin, but it seems relatively popular and has been around for a while, so you might want to consider it for inclusion in that list.

[tversteeg]

Thanks for the PR!