Update Documentation Links to Big Bang Group

Many links in the documents had links that included https://repo1.dso.mil/platform-one/big-bang/ instead of the current https://repo1.dso.mil/big-bang/.

Most have been corrected in this MR.

docs/understanding-bigbang/concepts/encryption.md

@@ -134,7 +134,7 @@ spec:
 If Big Bang is deployed within AWS, KMS key access can be handled via IAM roles and permissions on the cluster resources themselves.
 However, if the deployment is in a different environment from the KMS keys, AWS credentials may need to be provided via a secret as follows.
 
-Configure the flux-system `kustomize-controller` component with AWS credential environment variables using `kustomize`. Specific instructions for doing this may vary by deployment and environment but [an example](https://repo1.dso.mil/platform-one/big-bang/customers/template/-/tree/main) is covered in the bigbang template repo. Broadly speaking, adding environment variables to the `kustomize-controller` component can be accomplished by adding a patch to the `flux/kustomization.yaml` for the target deployment or environment. An example of such a `kustomization.yaml` is shown below:
+Configure the flux-system `kustomize-controller` component with AWS credential environment variables using `kustomize`. Specific instructions for doing this may vary by deployment and environment but [an example](https://repo1.dso.mil/big-bang/customers/template/-/tree/main) is covered in the bigbang template repo. Broadly speaking, adding environment variables to the `kustomize-controller` component can be accomplished by adding a patch to the `flux/kustomization.yaml` for the target deployment or environment. An example of such a `kustomization.yaml` is shown below:
 
 ```yaml
 bases: