Doc fixes

doc/faqs/how-do-i-install-a-package-in-a-custom-directory.md

@@ -12,7 +12,6 @@ This is common if your package is intended for a specific framework such as
 CakePHP, Drupal or WordPress. Here is an example composer.json file for a
 WordPress theme:
 
-```
     {
         "name": "you/themename",
         "type": "wordpress-theme",
@@ -20,7 +19,6 @@ WordPress theme:
             "composer/installers": "*"
         }
     }
-```
 
 Now when your theme is installed with Composer it will be placed into
 `wp-content/themes/themename/` folder. Check the
@@ -33,7 +31,6 @@ Drupal multisite setup where the package should be installed into your sites
 subdirectory. Here we are overriding the install path for a module that uses
 composer/installers:
 
-```
     {
         "extra": {
             "installer-paths": {
@@ -41,7 +38,6 @@ composer/installers:
             }
         }
     }
-```
 
 Now the package would be installed to your folder location, rather than the default
 composer/installers determined location.