Use mkdocs snippets to template common content blocks (#135)

manuscript/recipes/keycloak/create-user.md

@@ -33,6 +33,8 @@ Once your user is created, to set their password, click on the "**Credentials**"
 We've setup users in KeyCloak, which we can now use to authenticate to KeyCloak, when it's used as an [OIDC Provider](/recipes/keycloak/setup-oidc-provider/), potentially to secure vulnerable services using [Traefik Forward Auth](/ha-docker-swarm/traefik-forward-auth/).
 
 !!! Summary
-Created:
+    Created:
 
     * [X] Username / password to authenticate against [KeyCloak](/recipes/keycloak/)
+
+--8<-- "recipe-footer.md"