Fix a small typo (skills#382)

This PR just removes a duplicate word.

Author: ElizabethN

README.md

@@ -85,7 +85,7 @@ Branches allow you to separate your work from the `main` branch. In other words,
 
 ### :keyboard: Activity: Your first branch
 
-1. Open a new browser tab and navigate to your newly made repository repository. Then, work on the steps in your second tab while you read the instructions in this tab.
+1. Open a new browser tab and navigate to your newly made repository. Then, work on the steps in your second tab while you read the instructions in this tab.
 2. Navigate to the **< > Code** tab in the header menu of your repository.
 
    ![code-tab](/images/code-tab.png)