Fix typo (#193)

Author: Philzen

README.md

@@ -53,7 +53,7 @@ If you have any questions, ideas or topics to discuss about Elixir WebRTC, head
 Elixir WebRTC is the W3C WebRTC standard implementation written in almost pure Elixir.
 It does not use Membrane under the hood, and it aims to be as close to the W3C (and hence JavaScript) API as possible.
 
-Membrane, on the other hand, is a multimedia framework. It supports a lot of diffrent protocols, codecs and containers.
+Membrane, on the other hand, is a multimedia framework. It supports a lot of different protocols, codecs and containers.
 Membrane uses Elixir WebRTC in its [membrane_webrtc_plugin](https://github.com/membraneframework/membrane_webrtc_plugin) making it possible to use WebRTC with other Membrane elements.
 
 ## Credits