Add aiohttp speedups

Add aiohttp[speedups] in instalation recomendations
Includes cchardet and aiodns.

docs/source/install.rst

@@ -62,4 +62,36 @@ You can speedup your bots by following next instructions:
 
             $ pip install ujson
 
+- Use aiohttp speedups
+
+    - Use `cchardet <https://github.com/PyYoshi/cChardet>`_ instead of chardet module.
+
+        *cChardet* is high speed universal character encoding detector.
+
+        **Installation:**
+
+            .. code-block:: bash
+
+                $ pip install cchardet
+
+    - Use `aiodns <https://github.com/saghul/aiodns>`_ for speeding up DNS resolving.
+
+        *aiodns* provides a simple way for doing asynchronous DNS resolutions.
+
+        **Installation:**
+
+            .. code-block:: bash
+
+                $ pip install aiodns
+
+    - Installing speedups altogether.
+
+        The following will get you ``aiohttp`` along with ``cchardet,``, ``aiodns`` and ``brotlipy`` in one bundle.
+
+        **Installation:**
+
+            .. code-block:: bash
+
+                $ pip install aiohttp[speedups]
+
 In addition, you don't need do nothing, *aiogram* is automatically starts using that if is found in your environment.