split up file from Create+a+Module+Extension

Original here:
https://wiki.civicrm.org/confluence/display/CRMDOC/Create+a+Module+Extension

still missing some macro content! :-/

docs/extensions/basics.md

@@ -14,8 +14,33 @@ This section covers how to write extensions. See the [extension life cycle
 page](/extend-stages) for background on the publishing and review process for
 [published extensions](https://civicrm.org/extensions).
 
+## Pre-Requisites
+
+-   Have basic knowledge of PHP, Unix, and object-oriented programming
+-   Install ***civix v14.01*** or newer. For instructions, see
+    [https://github.com/totten/civix/](https://github.com/totten/civix/)
+    . This wiki page assumes that "civix" is installed and registered in
+    the PATH.
+-   Configure an extensions directory. For instructions, see
+    [Extensions](http://wiki.civicrm.org/confluence/display/CRMDOC/Extensions).
+    This wiki page assumes the directory is "/var/www/extensions", but
+    you should adapt as appropriate.
+     Your extensions directory must be under the CMS root directory so
+    that civix can find and bootstrap the CMS. Otherwise, it will fail
+    with an error like "Sorry, could not locate bootstrap.inc" on most
+    operations.
+-   The user account you use to develop the module must have permission
+    to read all CMS files, including configuration files, and write to
+    the extensions directory.
+     For example, Debian's drupal7 package saves database configuration
+    to /etc/drupal/7/sites/default/dbconfig.php, which is only readable
+    by the www-data user. You will need to make this file readable by
+    your development user account for civix to work.
+
 ## General overview
 
+[]( fixme paragraph this section into above notes )
+
 If you haven't already, you need to configure a local directory to store
 extensions.
 For instructions, see

mkdocs.yml

@@ -25,8 +25,7 @@ pages:
    - All Available Hooks: hooks-db.md
 - Writing Extensions:
   - Basics: extensions/basics.md
-  - Confluence+Source: extensions/createamoduleextension.md
-  # - civix: extensions/civix.md
+  - civix: extensions/civix.md
   # - Anatomy of Files: extensions/files.md
   # - Using hooks: extensions/using-hooks.md
   # - Customizing Screens: extensions/customize-screens.md