better API docs && more features in list

docs/admin/api.rst

+.. _adminapi:
+
+Administration API
+------------------
+
+Get configuration data
+~~~~~~~~~~~~~~~~~~~~~~
+
+.. code:: sh
+
+    GET /config
+
+Sample response
+```````````````
+
+.. code:: sh
+    
+    {
+      "autocomplete": "", 
+      "categories": [
+        "map", 
+        "it", 
+        "images", 
+      ], 
+      "default_locale": "", 
+      "default_theme": "oscar", 
+      "engines": [
+        {
+          "categories": [
+            "map"
+          ], 
+          "enabled": true, 
+          "name": "openstreetmap", 
+          "shortcut": "osm"
+        }, 
+        {
+          "categories": [
+            "it"
+          ], 
+          "enabled": true, 
+          "name": "arch linux wiki", 
+          "shortcut": "al"
+        }, 
+        {
+          "categories": [
+            "images"
+          ], 
+          "enabled": true, 
+          "name": "google images", 
+          "shortcut": "goi"
+        }, 
+        {
+          "categories": [
+            "it"
+          ], 
+          "enabled": false, 
+          "name": "bitbucket", 
+          "shortcut": "bb"
+        }, 
+      ], 
+      "instance_name": "searx", 
+      "locales": {
+        "de": "Deutsch (German)", 
+        "en": "English", 
+        "eo": "Esperanto (Esperanto)", 
+      }, 
+      "plugins": [
+        {
+          "enabled": true, 
+          "name": "HTTPS rewrite"
+        }, 
+        {
+          "enabled": false, 
+          "name": "Vim-like hotkeys"
+        }
+      ], 
+      "safe_search": 0
+    }

docs/dev/plugins.rst

 Plugins
 -------
 
-Plugins can extend/replace functionality of various components inside
+Plugins can extend or replace functionality of various components of
 searx.
 
-example\_plugin.py
-~~~~~~~~~~~~~~~~~~
+Example plugin
+~~~~~~~~~~~~~~
 
 .. code:: python
 
         ctx['search'].suggestions.add('example')
         return True
 
-Currently implemented plugin entry points (a.k.a hooks)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Plugin entry points
+~~~~~~~~~~~~~~~~~~~
 
--  Pre search hook (``pre_search``)
--  Post search hook (``post_search``)
--  Result hook (``on_result``) (is called if a new result is added (see
-   https\_rewrite plugin))
+Entry points (hooks) define when a plugin runs. Right now only three hooks are implemented. So feel free to implement a hook if it fits the behaviour of your plugin.
 
-Feel free to add more hooks to the code if it is required by a plugin.
+Pre search hook
+```````````````
 
-TODO
-~~~~
+Runs BEFORE the search request. Function to implement: ``pre_search``
 
--  Better documentation
--  More hooks
--  search hook (is called while searx is requesting results (for
-   example: things like math-solver), the different hooks are running
-   parallel)
+Post search hook
+````````````````
 
+Runs AFTER the search request. Function to implement: ``post_search``
+
+Result hook
+```````````
+
+Runs when a new result is added to the result list. Function to implement: ``on_result``

docs/dev/search_api.rst

 Search API
 ==========
 
-Search API endpoints: ``/``, ``/search``
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+The search supports both ``GET`` and ``POST``. However, using ``GET`` the parameters of the request remain hidden. So it is advised to use ``GET`` for querying.
 
-Endpoints have equivalent functionality.
+Furthermore, two enpoints ``/`` and ``/search`` are available for querying.
+
+.. code:: sh
+
+    GET /
+
+.. code:: sh
+
+    GET /search
 
 Parameters
-^^^^^^^^^^
+``````````
 
 +------------------+----------------------------------------------------------------------------------------------------+-----------------------------+
 | Name             | Description                                                                                        |                             |
 +------------------+----------------------------------------------------------------------------------------------------+-----------------------------+
 | ``engines``      | Comma separated list, specifies the active search engines                                          | optional                    |
 +------------------+----------------------------------------------------------------------------------------------------+-----------------------------+
+| ``lang``         | Code of the language                                                                               | optional (default: ``all``) |
++------------------+----------------------------------------------------------------------------------------------------+-----------------------------+
 | ``pageno``       | Search page number                                                                                 | optional (default: ``1``)   |
 +------------------+----------------------------------------------------------------------------------------------------+-----------------------------+
-
-Both ``GET`` and ``POST`` methods are supported.

docs/index.rst

-Privacy-respecting free metasearch engine
-=========================================
+Welcome to searx
+================
 
-Searx is a free software internet metasearch engine which aggregates results from other search engines, while not storing information about its users. Searx does not track or profile its users, nor does it share its users' data with third parties. Additionally, searx can be used over Tor for online anonymity.
+Searx is a free software internet metasearch engine which aggregates results from more than 70 engines, while not storing information about its users. Searx does not track or profile its users, nor does it share its users' data with third parties. Additionally, searx can be used over Tor for online anonymity.
 
 
 Features
  - Does not collect its users data
  - Offers secure, encrypted connections (HTTPS/SSL)
  - Hosted by organisations, such as La Quadrature du Net, which promote digital rights
+ - About 70 supported search engines
+ - Easy intergration with any search engine
 
 
-Further reading
----------------
+User documentation
+------------------
 
 .. toctree::
    :maxdepth: 1
 
    user/search_syntax
 
+Administrator documentation
+---------------------------
+
+.. toctree::
+   :maxdepth: 1
+
+   dev/install/installation
+   admin/api
 
 Developer documentation
 -----------------------
 
    dev/quickstart
    dev/contribution_guide
-   dev/install/installation
    dev/engine_overview
    dev/search_api
    dev/plugins