Clean up homepage to account for recent CSS changes.

Change-Id: Ieb9ad4466c9b61cff75121184331a451a6aebcc7

index.md

diff --git a/index.md b/index.md
index 83a03fd..7a0d9cc 100644
--- a/index.md
+++ b/index.md
@@ -1,4 +1,4 @@
-# Code Review for Git
+## Code Review for Git
 
 Gerrit provides web based code review and repository management for
 the [Git][git] version control system.
@@ -8,22 +8,27 @@
 |||---||| 2,2,2,3,:1,2
 ![diffy the kung fu review cuckoo](images/diffy100.png)
 
-## Discuss code
+### Discuss code
+
 and boost your team's code fu by talking about specifics.
 
-## Serve Git
+### Serve Git
+
 as an integrated experience within the larger code review flow.
 
-## Manage workflows
+### Manage workflows
+
 with deeply integrated and delegatable access controls.
 
 *** promo
-## Download
-[Gerrit 2.11.3][download]
-***
-|||---|||
 
---
+## Download
+
+[Gerrit 2.11.3][download]
+
+***
+
+|||---|||
 
 ## Discuss code
 
@@ -33,8 +38,6 @@
 
 ![side-by-side compare](images/sbs.png)
 
---
-
 ## Manage and serve Git repositories
 
 Gerrit includes Git-enabled SSH and HTTPS servers compatible with all
@@ -42,13 +45,17 @@
 together.
 
 |||---||| 6,2,4
-### Navigate projects
+
+#### Navigate projects
+
 ![project list](images/project-list.png)
 
-### Control access
+#### Control access
+
 ![access panel](images/access.png)
 
-## Update branches
+#### Update branches
+
 ![branch list](images/branches.png)
 |||---|||
 
@@ -56,33 +63,32 @@
 geographical mirrors for latency reduction and backup servers for hot
 spare redundancy.
 
---
-
 ## Extensible through plugins
 
 Gerrit Code Review can be extended and further customized by installing
 [server-side plugins][plugins]. Source code for additional plugins
 can be found through the [project listing](https://gerrit.googlesource.com/).
 
---
+## Get in touch
 
 |||---||| 2,2,2,:4,2
 
 ### Mailing list
+
 [repo-discuss](https://groups.google.com/group/repo-discuss)
 
 ### Social media
+
 [![Google+](https://ssl.gstatic.com/images/icons/gplus-32.png)](https://plus.google.com/communities/111271594706618791655)
 
 ### IRC
+
 [freenode](https://freenode.net/) #gerrit
 
 [Channel log](http://echelog.com/logs/browse/gerrit/)
 
 |||---|||
 
---
-
 [download]: https://gerrit-documentation.storage.googleapis.com/ReleaseNotes/ReleaseNotes-2.11.3.html
 [git gc]: https://gerrit-documentation.storage.googleapis.com/Documentation/2.11.3/config-gerrit.html#gc
 [plugins]: https://gerrit-documentation.storage.googleapis.com/Documentation/2.11.3/config-plugins.html