update docs

Signed-off-by: Somtochi Onyekwere <[email protected]>

internal/sops/azkv/keysource.go

@@ -201,6 +201,7 @@ func (key *MasterKey) getTokenCredential() (azcore.TokenCredential, error) {
 
 // Function copied from parts of `NewDefaultAzureCredential` in
 // https://github.com/Azure/azure-sdk-for-go/blob/sdk%2Fazidentity%2Fv1.3.0-beta.4/sdk/azidentity/default_azure_credential.go
+// This is because that we want to attempt to authentication using the azure cli.
 // getDefaultAzureCredential attempts to return an azcore.TokenCredential based on the following order.
 // - azidentity.NewEnvironmentCredential if environment variables AZURE_CLIENT_ID, AZURE_CLIENT_ID is set with
 // either one of the following: (AZURE_CLIENT_SECRET) or (AZURE_CLIENT_CERTIFICATE_PATH and AZURE_CLIENT_CERTIFICATE_PATH) or