Update user_account.md

docs/getting_started/user_account.md

@@ -15,7 +15,7 @@ in charge of the research project) must complete the following steps:
   You must not have more than one account in SUPR.
 - You must accept the user agreement in SUPR, either online or in paper form. Details [here](supr_register.md#accept-the-user-agreement).
 - Become a member of a project:
-    - If you are a PI: apply for a project in SUPR. Details [here](project_apply/#applying-for-an-uppmax-project-pi)
+    - If you are a PI: apply for a project in SUPR. Details [here](project_apply.md#applying-for-an-uppmax-project-pi).
     - If you are not a PI: Apply for membership in a project you want to join in SUPR, Wait for the PI to accept your application. Alternatively, the PI can add you directly. [Join an existing project](join_existing_project.md)
 - You must apply for an account at UPPMAX in SUPR.