Merge pull request #2979 from cats256/patch-3

Update part3d.md (fix incorrect links)

Author: mluukkai

src/content/3/en/part3d.md

@@ -141,7 +141,7 @@ The Render Dashboard shows the server logs:
 
 ![render dashboard with arrow pointting to server running on port 10000](../../images/3/r7.png)
 
-You can find the code for our current application in its entirety in the <i>part3-5</i> branch of [this GitHub repository](https://github.com/fullstack-hy2019/part3-notes-backend/tree/part3-5).
+You can find the code for our current application in its entirety in the <i>part3-6</i> branch of [this GitHub repository](https://github.com/fullstack-hy2020/part3-notes-backend/tree/part3-6).
 
 </div>
 
@@ -383,7 +383,7 @@ If there is something wrong in your configuration file, the lint plugin can beha
 
 Many companies define coding standards that are enforced throughout the organization through the ESlint configuration file. It is not recommended to keep reinventing the wheel over and over again, and it can be a good idea to adopt a ready-made configuration from someone else's project into yours. Recently many projects have adopted the Airbnb [Javascript style guide](https://github.com/airbnb/javascript) by taking Airbnb's [ESlint](https://github.com/airbnb/javascript/tree/master/packages/eslint-config-airbnb) configuration into use.
 
-You can find the code for our current application in its entirety in the <i>part3-6</i> branch of [this GitHub repository](https://github.com/fullstack-hy2020/part3-notes-backend/tree/part3-6).
+You can find the code for our current application in its entirety in the <i>part3-7</i> branch of [this GitHub repository](https://github.com/fullstack-hy2020/part3-notes-backend/tree/part3-7).
 </div>
 
 <div class="tasks">