Fix header link

Author: marcelovilla

docs/docs/how-tos/use-gpus.mdx

@@ -45,7 +45,7 @@ Overview of using GPUs on Nebari including server setup, environment setup, and
   Alternatively, you can configure the same variable using the UI.
 
 :::note
-At the time of writing this document, the latest CUDA version was showing as `12.4`. Please follow the steps [above](understanding-gpu-setup-on-the-server) to determine the highest supported version to use as an override value for the `CONDA_OVERRIDE_CUDA` environment variable.
+At the time of writing this document, the latest CUDA version was showing as `12.4`. Please follow the steps [above](#understanding-gpu-setup-on-the-server) to determine the highest supported version to use as an override value for the `CONDA_OVERRIDE_CUDA` environment variable.
 :::
 
 ## 3. Validating the setup