Update 'Documentation' section in Gerrit 2.6 release notes

Change-Id: If0115e765bfd261905d98baa73dbea4e92dd8269
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/Documentation/access-control.txt b/Documentation/access-control.txt
index f3794bb..9ef6e13 100644
--- a/Documentation/access-control.txt
+++ b/Documentation/access-control.txt
@@ -880,6 +880,7 @@
 * Project owners can manage access rights of their projects without a danger
   of violating a site wide policy
 
+[[block]]
 'BLOCK' access rule
 ~~~~~~~~~~~~~~~~~~~
 
diff --git a/Documentation/dev-contributing.txt b/Documentation/dev-contributing.txt
index 3f2eecf..07dae3a 100644
--- a/Documentation/dev-contributing.txt
+++ b/Documentation/dev-contributing.txt
@@ -57,6 +57,7 @@
 spans, we really do want your code.
 
 
+[[commit-message]]
 Commit Message
 --------------
 
@@ -258,6 +259,7 @@
     and it also makes "git revert" more useful.
   * Use topic branches to link your separate changes together.
 
+[[process]]
 Process
 -------
 
diff --git a/Documentation/dev-eclipse.txt b/Documentation/dev-eclipse.txt
index fe9d1ec..64e5935 100644
--- a/Documentation/dev-eclipse.txt
+++ b/Documentation/dev-eclipse.txt
@@ -8,6 +8,7 @@
 runtime debugging environment.
 
 
+[[maven]]
 Maven Plugin
 ------------
 
diff --git a/Documentation/dev-release.txt b/Documentation/dev-release.txt
index 0f87124..d429a1cc 100644
--- a/Documentation/dev-release.txt
+++ b/Documentation/dev-release.txt
@@ -23,6 +23,7 @@
 type of release you want to make (`stable-fix`, `stable`, `RC0`,
 `RC1`...).
 
+[[stable]]
 Stable
 ~~~~~~
 
@@ -62,6 +63,7 @@
 objectives are met
 
 
+[[security]]
 Security-Fix
 ~~~~~~~~~~~~
 
diff --git a/Documentation/user-changeid.txt b/Documentation/user-changeid.txt
index 4e87270..0b67205 100644
--- a/Documentation/user-changeid.txt
+++ b/Documentation/user-changeid.txt
@@ -40,6 +40,7 @@
 To avoid confusion with commit names, Change-Ids are typically prefixed with
 an uppercase `I`.
 
+[[creation]]
 Creation
 --------
 
diff --git a/Documentation/user-upload.txt b/Documentation/user-upload.txt
index d6b90dda..55ab895 100644
--- a/Documentation/user-upload.txt
+++ b/Documentation/user-upload.txt
@@ -13,6 +13,7 @@
 Gerrit supports two methods of authenticating the uploading user.  SSH
 public key, and HTTP/HTTPS.
 
+[[http]]
 HTTP/HTTPS
 ----------