Small readme changes around docker instructions

Author: aviaviavi

README.md

@@ -104,13 +104,13 @@ For more info:
 
 
 ### Running With Docker
-The dockerfile is included in the root of the project. The Dockerfile will expect a curl-runnings executable in the same directory as the Dockerfile and a tests.yml file. You can download the latest executable from the release page : https://github.com/aviaviavi/curl-runnings/releases .
+A dockerfile is included in the root of the project. The Dockerfile will expect the linux based curl-runnings executable in the same directory as the Dockerfile and a `tests.yml` file. You can download the latest executable from the release page : https://github.com/aviaviavi/curl-runnings/releases .
 
 ``` docker build . -t curl-runnings-tests```
 
 ```  docker run curl-runnings-tests```
 
-In case u use docker-compose, you can add this to docker-compose.yml:
+If you use docker-compose, you can add this to docker-compose.yml:
 
 ```
 tests: