Merge pull request #165 from input-output-hk/fsancheziohk-patch-41

Update 06-essential-cardano.mdx

Author: olgahryniuk

content/11-community/06-essential-cardano.mdx

@@ -3,6 +3,6 @@ title: Essential Cardano
 metaTitle: Essential Cardano
 ---
 
-[Essential Cardano](https://github.com/input-output-hk/essential-cardano) is a central source for all things Cardano-related. 
+[Essential Cardano](https://github.com/input-output-hk/essential-cardano) is a central source for all things [Cardano](https://cardano.org/). 
 This is an open source repository built for the community where we have outlined all the organizations, partners, and groups that are part of the Cardano ecosystem, as well as a comprehensive collection of resources to help you learn more about Cardano. 
-Help us grow and expand this list by submitting a pull request with your contribution. 
+Help us grow and expand this list by submitting a pull request (PR) with your contribution.