edited contrib guidlines

CONTRIBUTING.md

@@ -1,14 +1,14 @@
 ## Contributing to CausalQueries
 
-:tada: Welcome to our contribution guidelines and thank you for your interesting in contributing! 
+:tada: Welcome to our contribution guidelines and thank you for your interest in contributing! 
 
 
   ### Reporting a bug
   Before you report a bug make sure the same bug hasn't been reported before. We track bugs as [issues on GitHub](https://github.com/macartan/CausalQueries/issues). 
   If no related issue has been opened, create an issue keeping in mind the following guidelines:
 
   - Use an informative title
-  - Write a minimal working example that allow us to reproduce the bug you found
+  - Write a minimal working example that allows us to reproduce the bug you found
   - If the bug you're reporting crashes your R session, please mention that in the title
 
   ### Contributing code
@@ -17,14 +17,14 @@
 
   - Fork the [CausalQueries repository](https://github.com/macartan/CausalQueries) 
   - Clone your fork locally 
-  - Be always up to date with the `master`
+  - Always be up to date with the `master` branch
   - Add your edits
   - Run and pass `devtools::check()`
   - Reach a 100% coverage `covr::package_coverage()`
   - Add yourself as a contributor in the `DESCRIPTION` file
   - Open a pull request
 
 
-  Note: members of the `CausalQueries` community can skip the first two bullet points above and branch out instead.
+  Note: members of the `CausalQueries` dev team can skip the first two bullet points above and branch out instead.