Make configuration examples consistent

Most of the configuration examples had 2 spaces indendation and some had
4.

Change-Id: I713509e419a4bea2d423dd4d220bfeeb614518c0
diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index e46aad4..70d98cb 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -124,7 +124,7 @@
 
 ```
   [plugin "quota"]
-        useGitObjectCount = true
+    useGitObjectCount = true
 ```
 
 <a id="useGitObjectCount">
@@ -143,13 +143,13 @@
 Example:
 
 ```
-[group "buildserver"]
+  [group "buildserver"]
     uploadpack = 10 / min burst 500
 
-[group "Registered Users"]
+  [group "Registered Users"]
     uploadpack = 1 /min burst 180
 
-[group "Anonymous Users"]
+  [group "Anonymous Users"]
     uploadpack = 6/h burst 12
 ```
 
@@ -169,7 +169,7 @@
 
 Format of the rate limit entries in `quota.config`:
 ```
-[group "<groupName>"]
+  [group "<groupName>"]
     <rateLimitType> = <rateLimit> <rateUnit> burst <storedRequests>
 ```
 
@@ -214,8 +214,8 @@
 of requests above the maximum request rate.
 
 ```
-[group "Registered Users"]
-	uploadpack = 30/hour burst 60
+  [group "Registered Users"]
+    uploadpack = 30/hour burst 60
 ```
 
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