Add TODOs Badge to README

Closes #37217

README.md

@@ -71,3 +71,4 @@ for more info.
 [![Code Triagers Badge](https://www.codetriage.com/godotengine/godot/badges/users.svg)](https://www.codetriage.com/godotengine/godot)
 [![Translate on Weblate](https://hosted.weblate.org/widgets/godot-engine/-/godot/svg-badge.svg)](https://hosted.weblate.org/engage/godot-engine/?utm_source=widget)
 [![Total alerts on LGTM](https://img.shields.io/lgtm/alerts/g/godotengine/godot.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/godotengine/godot/alerts)
+[![TODOs](https://badgen.net/https/api.tickgit.com/badgen/github.com/godotengine/godot)](https://www.tickgit.com/browse?repo=github.com/godotengine/godot)