Presentations page: Fix 'How to add' section link

Bug: Issue 13332
Change-Id: I5f7673da145f0cf7387475a04a49046653e617dc
diff --git a/pages/site/community/presentations.md b/pages/site/community/presentations.md
index 789d371..22f24d0 100644
--- a/pages/site/community/presentations.md
+++ b/pages/site/community/presentations.md
@@ -76,7 +76,7 @@
 
 From: Edwin Kempin (Google)
 
-### <a id="howToAddPresentations">How to add presentations
+### How to add presentations
 
 Upload a change to the [homepage](https://gerrit-review.googlesource.com/admin/repos/homepage)
 project that adds the presentation to this page. If you don't know how to do this, just