modify according to review

wiki/src/support.mdwn

@@ -4,9 +4,7 @@ Search the documentation
 ========================
 
 Read the [[official documentation|doc]] to learn more about how Tails
-works and maybe start answering your questions.
-
-It contains:
+works and maybe start answering your questions. It contains:
 
   - general information about what Tails is,
   - information to understand how it can help you and what its limitations are,
@@ -15,13 +13,15 @@ It contains:
 
 [[Visit Tails documentation|doc]]
 
-Troubleshooting
-===============
+Upgrade
+=======
 
-So you have a problem with Tails? Well, let's see how to get it fixed.
+If it's not the case, make sure you are using the latest version, as
+[[upgrading|doc/first_steps/upgrade]] might solve your problem. If it does not,
+please read on.
 
 Check if the problem is already known
--------------------------------------
+=====================================
 
 You can have a look at:
 
@@ -29,13 +29,6 @@ You can have a look at:
   - the [[list of things to do|todo]]
   - the [list of things that will be in the next release](https://labs.riseup.net/code/projects/tails/issues?query_id=111)
 
-Upgrade
--------
-
-If it's not the case, make sure you are using the latest version, as
-[[upgrading|doc/first_steps/upgrade]] might solve your problem. If it does not,
-please read on.
-
 <div id="page-found_a_problem">
 
 <div id="bugs">