Update hero_docs/crystallib_hero_basic_docs.md

hero_docs/crystallib_hero_basic_docs.md

@@ -24,7 +24,7 @@ We provide the steps to prepare a Docker Ubuntu container to work with Hero and
 sudo docker run -it --net=host --name=hero-container -v ~/code:/root/code ubuntu:latest /bin/bash
 ```
 
-- If you want to set the SSH key, do the following
+- If you want to set up the SSH key, do the following:
    - Create Directory .ssh in container
    ```
    mkdir -p ~/.ssh