Documentation: add docs for TPR to CRD migration

scripts/dump-tprs

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+if [ -z $DEX_NAMESPACE ];then
+        echo "Must export \$DEX_NAMESPACE"
+        exit
+fi
+
+for RESOURCE in authcodes authrequests connectors oauth2clients offlinesessionses refreshtokens passwords signingkeies; do
+        kubectl get --namespace=$DEX_NAMESPACE $RESOURCE.oidc.coreos.com  -o yaml
+done
+