fixed markdown error

04 Lab 1 Software Quality.md

@@ -91,6 +91,7 @@ This week you are starting the development process. You are advised to use the `
 15. Modify the `pre-push` hook to run the jest test suite with code coverage.
 
 ### 2.1 Preparing for Test-Driven Development
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 At this stage you can start building your system. Each time you commit code the linter will run. Each time you push your code it will run the unit tests.
 
 Every time you add a new `.js` file to your code you should: