edit copy .env_sample instruction

Author: thepriefy

README.md

@@ -37,8 +37,6 @@ All updates to this library is documented in our [CHANGELOG](https://github.com/
 Copy ```.env_sample``` and change its name to ```.env.```
 
 ```bash
-git clone https://github.com/sendgrid/ruby_http_client.git
-cd ruby_http_client
 cp .env_sample .env
 ```
 
@@ -120,4 +118,4 @@ ruby-http-client is guided and supported by the SendGrid [Developer Experience T
 ruby-http-client is maintained and funded by SendGrid, Inc. The names and logos for ruby-http-client are trademarks of SendGrid, Inc.
 
 # License
-[The MIT License (MIT)](LICENSE.txt)
+[The MIT License (MIT)](LICENSE.txt)