Merge pull request #1672 from vors/links

Fix two broken links in docs

.gitignore

@@ -51,3 +51,6 @@ gen
 
 #VS Code files
 .vscode
+
+# OS X
+.DS_Store

docs/building/linux.md

@@ -14,7 +14,7 @@ Git Setup
 ---------
 
 Using Git requires it to be set up correctly; 
-refer to the [Working with the PowerShell Repository](../git/powershell-repository-101.md),
+refer to the [Working with the PowerShell Repository](../git/README.md),
 [README](../../README.md), and [Contributing Guidelines](../../.github/CONTRIBUTING.md).
 
 **This guide assumes that you have recursively cloned the PowerShell repository and `cd`ed into it.**

docs/testing-guidelines/testing-guidelines.md

@@ -33,7 +33,7 @@ From there you can easily navigate to the build history.
 Travis CI works similarly to AppVeyor. 
 For Travis CI there will be multiple badges.
 The badges indicate the last build status of `master` branch for different platforms.
-Hopefully, each badge is green:
+Hopefully, it's green:
 
 ![Travis-CI-Badge-Green.png](Images/Travis-CI-Badge-Green.png)