Merge pull request kubernetes#6293 from tengqm/link-glossary

Add link to glossary page from tutorial

Author: tengqm

docs/tutorials/index.md

@@ -6,6 +6,8 @@ This section of the Kubernetes documentation contains tutorials.
 A tutorial shows how to accomplish a goal that is larger than a single
 [task](/docs/tasks/). Typically a tutorial has several sections,
 each of which has a sequence of steps.
+Before walking through each tutorial, you may want to bookmark the 
+[Standardized Glossary](/docs/reference/glossary/) page for later references.
 
 * [Kubernetes Basics](/docs/tutorials/kubernetes-basics/) is an in-depth interactive tutorial that helps you understand the Kubernetes system and try out some basic Kubernetes features.