Luna Streaming 3.1 upgrade guide (#156)

* more-content

* known-issues

* rocksdb

* docker-deploy

* fix-header-issue

* kubernetes

* sentence-case

* nikhil-and-mukesh-review

* Add more descriptive title

---------

Co-authored-by: Eric Schneider <[email protected]>

Author: mendonk

modules/install-upgrade/nav.adoc

@@ -5,3 +5,4 @@
 * xref:production-cluster-sizing.adoc[]
 * xref:cluster-sizing-reference.adoc[]
 * xref:migration.adoc[]
+* xref:upgrade-guide.adoc[]