Add quik node as web3 provider in docs

docs/providers.rst

@@ -152,14 +152,33 @@ Valid formats for this environment variable are:
 - ``https://node.ontheweb.com``
 - ``ws://127.0.0.1:8546``
 
-
 .. _custom_auto_providers:
 
 Auto-initialization Provider Shortcuts
 --------------------------------------
 
 There are a couple auto-initialization shortcuts for common providers.
 
+QuikNode
+~~~~~~~~~~~~~~
+
+If you want to use QuikNode, grab a free Node URL from https://quiknode.io.
+
+To setup QuikNode, then set the following environment variable::
+
+    $ export WEB3_PROVIDER_URI=https://young-early-dawn.quiknode.pro/<your-token-here>/
+
+By doing the above step we are now able to take advantage of web3.py's auto-initialization.
+
+.. code-block:: python
+
+    >>> from web3.auto import w3
+
+    # confirm that the connection succeeded
+    >>> w3.isConnected()
+    True
+
+
 Infura Mainnet
 ~~~~~~~~~~~~~~
 
@@ -182,6 +201,7 @@ an optional secret key, set the environment variable ``WEB3_INFURA_API_SECRET``:
     # confirm that the connection succeeded
     >>> w3.isConnected()
     True
+
 
 Geth dev Proof of Authority
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~