doc change: misc doc fixes.

Bug:2160782
Change-Id: Iaf5d2cc2e3c657700469e8b7394a95bc03fc26f3
diff --git a/docs/html/sdk/installing.jd b/docs/html/sdk/installing.jd
index 66c6bdc..edc77e8 100644
--- a/docs/html/sdk/installing.jd
+++ b/docs/html/sdk/installing.jd
@@ -360,7 +360,7 @@
 </ul>
 
 
-<h2 id="troubleshooting">Installation Troubleshooting</h2>
+<h2 id="troubleshooting">Troubleshooting</h2>
 
 <h3>Ubuntu Linux Notes</h3>