fix repo link

Co-authored-by: Shari Laster <[email protected]>

Author: JCSzamosi

CONTRIBUTING.md

@@ -102,7 +102,7 @@ community listed at <https://carpentries.org/connect/> including via social
 media, slack, newsletters, and email lists. You can also [reach us by
 email][contact].
 
-[repo]: https://example.com/FIXME
+[repo]: https://github.com/LibraryCarpentry/lc-data-intro
 [repo-issues]: https://github.com/LibraryCarpentry/lc-data-intro/issues
 [contact]: mailto:[email protected]
 [cp-site]: https://carpentries.org/