update README.md [skip ci]

Author: GordonLesti

README.md

@@ -24,13 +24,13 @@ Lesti_Fpc
 * Install with [modman](https://github.com/colinmollenhour/modman):
     * ```$ modman clone git@github.com:GordonLesti/Lesti_Fpc.git```
 * Install with [Magento Composer Installer](https://github.com/magento-hackathon/magento-composer-installer) and add a requirement `gordonlesti/lesti_fpc`
-    ```
-    {
-        "require": {
-            "gordonlesti/lesti_fpc": "*"
+
+        {
+            "require": {
+                "gordonlesti/lesti_fpc": "*"
+            }
         }
-    }
-    ```
+    
 * Install manually:
     * Download latest version [here](https://github.com/GordonLesti/Lesti_Fpc/archive/master.zip)
     * Unzip