Update CONTRIBUTING.md

Better format

CONTRIBUTING.md

@@ -5,7 +5,7 @@
 
 All submissions should have the following format:
 
-* **Title:** [Title of thing, with link to thing](https://www.youtube.com/watch?v=JWOY6uu3VUo) (PDF/Video/etc tag, optional)
+#### [Title of thing, with link to thing](https://www.youtube.com/watch?v=JWOY6uu3VUo) (PDF/Video/etc tag, optional)
 
 * **Hype:** "The hyped claim or topic being addressed. You can be informal here, but don't be snide."
 
@@ -18,7 +18,7 @@ All submissions should have the following format:
 If any of this seems unclear to you, check out the existing list for examples of what it should look like. Here's a copyable template without formatting:
 
 ```
-* **Title:** 
+####
 
 * **Hype:**