Update README.md

Author: alexgurr

README.md

@@ -39,10 +39,10 @@ Some might require connection to external APIs, but all information will be prov
 
  
 ## Have you got the solutions?
-All the coding challenges have been completed to a high standard. Get your automatic invite to the solutions repository at [solutions.alexgurr.com](https://www.solutions.alexgurr.com).
+All the coding challenges have been completed to a high standard. Get an automatic invite to the solutions repository at [solutions.alexgurr.com](https://www.solutions.alexgurr.com).
 
 #### Why are the solutions invite only?
-People use these challenges for interviews. By putting the solutions behind a collaboration wall/invite-only repository we can discourage candidates from simply looking up the solutions. We track current/past collaborators, meaning if you want to check if a potential candidate had access/looked at the solutions you can get in touch and find out. 
+People use these challenges for interviews. By putting the solutions behind a collaboration wall / invite-only repository we can discourage candidates from simply looking up the solutions. We track current/past collaborators, meaning if you want to check if a potential candidate had access/looked at the solutions you can get in touch and find out. 
 
  
 ## Why does it take so long for updates/new challenges?