update IRC doc to OFTC

Author: ultrabug

README.rst

@@ -58,7 +58,7 @@ Up-to-date `documentation <https://py3status.readthedocs.io>`_:
 
 Get help or share your ideas on IRC:
 
-- channel **#py3status** on **FreeNode**
+- channel **#py3status** on **OFTC**
 
 Usage
 =====

doc/contributing.rst

@@ -10,7 +10,7 @@ Please read carefully the :ref:`zen` describing the minimal things
 to keep in mind when contributing or participating to this project.
 
 Feel free to open an issue to propose your ideas as request for comments [RFC]
-and to join us on IRC Freenode #py3status channel for a live chat.
+and to join us on IRC OFTC #py3status channel for a live chat.
 
 .. _zen:
 

doc/intro.rst

@@ -139,8 +139,7 @@ Live IRC Chat
 ^^^^^^^^^^^^^
 
 
-Visit `#py3status <https://webchat.freenode.net/?channels=%23py3status&uio=d4>`_
-at `freenode.net <https://freenode.net>`_
+Join us on `#py3status` at `oftc.net <https://www.oftc.net>`_
 
 
 Usage