minor #5326 Fixed code intentation (lyrixx)

This PR was merged into the 2.3 branch.

Discussion
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Fixed code intentation

Commits
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b701aca Fixed code intentation

Author: wouterj

cookbook/deployment/platformsh.rst

@@ -101,8 +101,8 @@ following file (it's your role to add this file to your code base)::
     // app/config/parameters_platform.php
     <?php
     $relationships = getenv("PLATFORM_RELATIONSHIPS");
-        if (!$relationships) {
-            return;
+    if (!$relationships) {
+        return;
     }
 
     $relationships = json_decode(base64_decode($relationships), true);