A batch of docs style fixes.

docs/useful_urls.md

Index: docs/useful_urls.md
diff --git a/docs/useful_urls.md b/docs/useful_urls.md
index 262903921fefb1a92a26bfbdbfcb0fed17b5e820..e449e03600207b03cdf0e1c02f9e208e99cabec8 100644
--- a/docs/useful_urls.md
+++ b/docs/useful_urls.md
@@ -1,6 +1,7 @@
-# Introduction
+# Useful URLs
 
-Chromium has a lot of different pages for a lot of different things. This page aims to be a repository of useful links that people may find useful.
+Chromium has a lot of different pages for a lot of different things.
+This page aims to be a repository of useful links that people may find useful.
 
 ## Build Status
 
@@ -17,6 +18,7 @@ Chromium has a lot of different pages for a lot of different things. This page a
 | http://chromium-build-logs.appspot.com/list  | Filterable list of most recent build logs |
 
 ## For Sheriffs
+
 | http://build.chromium.org/p/chromium.chromiumos/waterfall?show_events=true&reload=120&failures_only=true | List of failing bots for a waterfall (chromium.chromiumos as an example) |
 |:---------------------------------------------------------------------------------------------------------|:-------------------------------------------------------------------------|
 | http://build.chromium.org/p/chromium.linux/waterfall?show_events=true&reload=120&builder=Linux%20Builder%20x64&builder=Linux%20Builder%20(dbg) | Monitor one or multiple bots (Linux Builder x64 and Linux Builder (dbg) on chromium.linux as an example) |
@@ -25,11 +27,13 @@ Chromium has a lot of different pages for a lot of different things. This page a
 | http://test-results.appspot.com/dashboards/flakiness_dashboard.html                                      | Lists historical test results for the bots                               |
 
 ## Release Information
+
 | https://omahaproxy.appspot.com/viewer | Current release versions of Chrome on all channels |
 |:--------------------------------------|:---------------------------------------------------|
 | https://omahaproxy.appspot.com/       | Looks up the revision of a build/release version   |
 
 ## Source Information
+
 | http://cs.chromium.org/ | Code Search |
 |:------------------------|:------------|
 | http://cs.chromium.org/SEARCH_TERM | Code Search for a specific SEARCH\_TERM |
@@ -40,8 +44,9 @@ Chromium has a lot of different pages for a lot of different things. This page a
 | http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&mode=html&range=SUCCESS_REV:FAILURE_REV | Blink changes in revision range |
 
 ## Communication
+
 | http://groups.google.com/a/chromium.org/group/chromium-dev/topics | Chromium Developers List |
 |:------------------------------------------------------------------|:-------------------------|
 | http://groups.google.com/a/chromium.org/group/chromium-discuss/topics | Chromium Users List      |
 | http://code.google.com/p/chromium/source/list                     | Wiki History (SVN-based) |
-| http://code.google.com/p/chromium/wiki/UserHandleMapping          | Chromium User Mapping    |
+| http://code.google.com/p/chromium/wiki/UserHandleMapping          | Chromium User Mapping    |