Update CONTRIBUTING.md (#698)

Author: andreaangiolillo

CONTRIBUTING.md

@@ -8,8 +8,7 @@ Contributing
 MongoDB welcomes community contributions! If you’re interested in making a contribution to  Terraform MongoDB Atlas provider, please follow the steps below before you start writing any code:
 
 1. Sign the [contributor's agreement](http://www.mongodb.com/contributor). This will allow us to review and accept contributions.
-1. Read the [Terraform contribution guidelines]
-(https://www.terraform.io/docs/extend/community/contributing.html) and the [README](https://github.com/mongodb/terraform-provider-mongodbatlas/blob/master/README.md) in this repo
+1. Read the [Terraform contribution guidelines](https://www.terraform.io/docs/extend/community/contributing.html) and the [README](https://github.com/mongodb/terraform-provider-mongodbatlas/blob/master/README.md) in this repo
 1. Reach out by filing an [issue](https://github.com/mongodb/terraform-provider-mongodbatlas/issues) to discuss your proposed contribution, be it a bug fix or feature/other improvements.  
 
 After the above 3 steps are completed and we've agreed on a path forward:

examples/Readme.md renamed to examples/README.md

@@ -2,7 +2,7 @@
 
 This directory contains various examples of using the MongoDB Atlas Provider.  Each example has a README containing more details on what the example does and any details required to configure it.
 
-To run any example, clone the repository, edit any required variales and run terraform plan/apply within the example's own directory.
+To run any example, clone the repository, edit any required variables and run terraform plan/apply within the example's own directory.
 
 For example: