spelling fixes

Author: jazzz

informational/chatdefs.md

@@ -52,12 +52,12 @@ The term "message" often has multiple meanings depending on context. The followi
 
 **Content**: The data that is intended for end-users or applications - this includes text, images and other user valued data. These messages originate from the application, and are ultimately delivered to other applications. 
 
-**Frame**: The data generated by a chat protocol. Frames are messages used by protocols to provide functionality - they are how clients exchange information with eachother and coordinate state.
+**Frame**: The data generated by a chat protocol. Frames are messages used by protocols to provide functionality - they are how clients exchange information with each other and coordinate state.
 
-**Payload**: The encoded data or datastructures used by lower layer protocols. This includes the encoded bytes passed to a delivery service or subsequent layers. Payloads are usually associated with the delivery process, which is not defined by chat protocols.
+**Payload**: The encoded data or data structures used by lower layer protocols. This includes the encoded bytes passed to a delivery service or subsequent layers. Payloads are usually associated with the delivery process, which is not defined by chat protocols.
 
 
-Other specfic message types include:
+Other specific message types include:
 
 **Content Type**: The structured format of content. These data structures represent specific encodings of Text, Image, Audio data.