Fix formatting of documentation

Change-Id: I079062823eb8116c272b6148695f901dc3f5473b

src/main/resources/Documentation/about.md

diff --git a/src/main/resources/Documentation/about.md b/src/main/resources/Documentation/about.md
index 17a4e29..e19d856 100644
--- a/src/main/resources/Documentation/about.md
+++ b/src/main/resources/Documentation/about.md
@@ -36,11 +36,11 @@
     createdAt = Wed, 13 Nov 2013 14:45:00 +0100
 ```
 
-<a id="createdBy">
+<a id="createdBy"></a>
 `user.<service-user-name>.createdBy`
 : The username of the user who created the service user.
 
-<a id="createdAt">
+<a id="createdAt"></a>
 `user.<service-user-name>.createdAt`
 : The date when the service user was created.
 

src/main/resources/Documentation/config.md

diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index b665fef..aa2e4b5 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -9,7 +9,7 @@
     group = Service Users
 ```
 
-<a id="block">
+<a id="block"></a>
 `plugin.@PLUGIN@.block`
 :	A username which is forbidden to be used as name for a service
 	user. The blocked username is case insensitive. The match can
@@ -19,28 +19,31 @@
 	blocked. Multiple usernames can be blocked by specifying multiple
 	`plugin.@PLUGIN@.block` entries.
 	Examples:
-	   [plugin "serviceuser"]
-            block = johndoe
-            block = jane*
-            block = ^gerrit[0-9]*
 
-<a id="group">
+```
+   [plugin "serviceuser"]
+        block = johndoe
+        block = jane*
+        block = ^gerrit[0-9]*
+```
+
+<a id="group"></a>
 `plugin.@PLUGIN@.group`
 :	The name of an internal group to which newly created service users
 	should be automatically added. Multiple groups can be specified by
 	having multiple `plugin.@PLUGIN@.group` entries.
 
-<a id="infoMessage">
+<a id="infoMessage"></a>
 `plugin.@PLUGIN@.infoMessage`
 :	HTML formatted message that should be displayed on the service user
 	creation screen.
 
-<a id="onSuccessMessage">
+<a id="onSuccessMessage"></a>
 `plugin.@PLUGIN@.onSuccessMessage`
 :	Message that should be displayed after a service user was
 	successfully created.
 
-<a id="allowEmail">
+<a id="allowEmail"></a>
 `plugin.@PLUGIN@.allowEmail`
 :	Whether it is allowed for service user owners to set email
 	addresses for their service users. Independent of this setting
@@ -48,7 +51,7 @@
 	any service user.
 	By default false.
 
-<a id="allowHttpPassword">
+<a id="allowHttpPassword"></a>
 `plugin.@PLUGIN@.allowHttpPassword`
 :	Whether it is allowed for service user owners to generate HTTP
     passwords for their service users. Independent of this setting
@@ -56,12 +59,12 @@
     passwords for any service user.
     By default false.
 
-<a id="allowOwner">
+<a id="allowOwner"></a>
 `plugin.@PLUGIN@.allowOwner`
 :	Whether it is allowed to set an owner group for a service user.
 	By default false.
 
-<a id="createNotes">
+<a id="createNotes"></a>
 `plugin.@PLUGIN@.createNotes`
 :	Whether commits of a service user should be annotated by a Git note
 	that contains information about the current owners of the service
@@ -70,7 +73,7 @@
 	user the 'Forge Committer' access right must be blocked for service
 	users. By default true.
 
-<a id="createNotes">
+<a id="createNotes"></a>
 `plugin.@PLUGIN@.createNotesAsync`
 :	Whether the Git notes on commits that are pushed by a service user
 	should be created asynchronously. By default false.