fix: correct comment typo

dist/protocol.esm.js

@@ -4,7 +4,7 @@ import Validator from 'swagger-model-validator';
  * GenericProtocol defines a simple passthru handler for messages
  * This can be extended to handle different schemas 
  * 
- * The assunption is that all messages conform to a single 
+ * The assumption is that all messages conform to a single 
  * wrapper schema definition. Different payloads are handled 
  * by a oneOf definitions within the schema determined by a 
  * field value. 

dist/protocol.js

@@ -6,7 +6,7 @@ var Validator = require('swagger-model-validator');
  * GenericProtocol defines a simple passthru handler for messages
  * This can be extended to handle different schemas 
  * 
- * The assunption is that all messages conform to a single 
+ * The assumption is that all messages conform to a single 
  * wrapper schema definition. Different payloads are handled 
  * by a oneOf definitions within the schema determined by a 
  * field value. 

src/protocol/index.js

@@ -4,7 +4,7 @@ import Validator from 'swagger-model-validator';
  * GenericProtocol defines a simple passthru handler for messages
  * This can be extended to handle different schemas 
  * 
- * The assunption is that all messages conform to a single 
+ * The assumption is that all messages conform to a single 
  * wrapper schema definition. Different payloads are handled 
  * by a oneOf definitions within the schema determined by a 
  * field value.