Update talk-template.md

Author: brakhane

.github/ISSUE_TEMPLATE/talk-template.md

@@ -11,16 +11,16 @@ assignees: brakhane
 
 <!-- Check [x] those that apply -->
 
-[ ] I'd like to hold this talk
-[ ] I'd like somebody to talk about this topic, but can't do it myself
+* [ ] I'd like to hold this talk
+* [ ] I'd like somebody to talk about this topic, but can't do it myself
 
 #### Talk length
 <!-- If you don't hold the talk, you can leave it empty for now -->
 
-[ ] 5-15 Minutes
-[ ] 15-30 Minutes
-[ ] 30-45 Minutes
-[ ] 45-60 Minutes
+* [ ] 5-15 Minutes
+* [ ] 15-30 Minutes
+* [ ] 30-45 Minutes
+* [ ] 45-60 Minutes
 
 ## Description