Update TOC in Documentation/operator.md

Change-Id: If7ee35a8bdae73c16b404da4cac59d8387d598ed
diff --git a/Documentation/operator.md b/Documentation/operator.md
index 034cb1e..1e329c6 100644
--- a/Documentation/operator.md
+++ b/Documentation/operator.md
@@ -6,6 +6,10 @@
    3. [Publish](#publish)
    4. [Tests](#tests)
    5. [Deploy](#deploy)
+      1. [Using helm charts](#using-helm-charts)
+         1. [gerrit-operator-crds](#gerrit-operator-crds)
+         2. [gerrit-operator](#gerrit-operator-1)
+      2. [Without the helm charts](#without-the-helm-charts)
    6. [CustomResources](#customresources)
       1. [GerritCluster](#gerritcluster)
       2. [Gerrit](#gerrit)