Fix small typo's and missing articles in Readme.md (#14)

* Fix small typo's and missing articles in Readme.md

* Fix another small issue in readme.md

README.md

@@ -1,5 +1,5 @@
 # kafka-trigger
 
-A Kubeless _Trigger_ represents an event source the functions can be associated with it. When an event occurs in the event source, Kubeless will ensure that the associated functions are invoked. __Kafka-trigger__ addon to Kubeless adds support for a Kafka streaming platform as trigger to Kubeless. A Kafka topic can be associated with one or more Kubeless functions. Kubeless functions associated with a topic are triggerd as and when messages get pubslished to the topic.
+A Kubeless _Trigger_ represents an event source that functions can be associated with. When an event occurs in the event source, Kubeless will ensure that the associated functions are invoked. __Kafka-trigger__ addon to Kubeless adds support for a Kafka streaming platform as a trigger to Kubeless. A Kafka topic can be associated with one or more Kubeless functions. Kubeless functions associated with a topic are triggered as, and when, messages get published to the topic.
 
-Please refer to the [documentation](https://kubeless.io/docs/pubsub-functions/#kafka) on how to use Kafka trigger with Kubeless.
+Please refer to the [documentation](https://kubeless.io/docs/pubsub-functions/#kafka) on how to use the Kafka trigger with Kubeless.