EDU-2935: Fix broken links after move to learn site

[fairlydurable]

Please check the three code links to

.
├── pom.xml
└── src
    ├── main
    └── test
        └── java
            └── backgroundcheckboilerplate
                ├── BackgroundCheckBoilerplateActivitiesTest.java
                ├── BackgroundCheckBoilerplateWorkflowIntegrationTest.java
                └── BackgroundCheckBoilerplateWorkflowTest.java

Search for "View the source code" and you'll find the three links that were fixed.

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Name	Status	Preview	Comments	Updated (UTC)
temporal-learning	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 22, 2024 8:29pm