[#172489607]Edit description of keys for product version property

Author: Paige

property-template-references.html.md.erb

@@ -445,11 +445,14 @@ A list of tile dependencies. If the required tile is not present in the <%= vars
 Supported restriction operators are `=`, `!=`, `>`, `<`, `>=`, `<=`, and `~>`.
 
 The following keys are supported:
+
 - `name`: The name of the tile required by your tile. This is a required key.
 - `version`: The version range required by your tile. This is a required key.
-- `optional`: Whether or not this dependency is optional. This is an optional key which defaults to *false*.
-
-<p class="note warning"><strong>Warning:</strong> The <code>optional</code> key was introduced in Ops Manager 2.8. It will be ignored in earlier versions, causing your declared dependency to be non-optional.</p>
+- `optional`: Whether or not this dependency is optional. This is an optional key that defaults to false.
+  <p class="note warning"><strong>Warning:</strong> The <code>optional</code> key was introduced in Ops Manager v2.8.
+  It is ignored in earlier versions.
+  This means that declared dependencies are required in Ops Manager v2.7 and earlier.
+  </p>
 
 For example:
 
@@ -462,6 +465,8 @@ For example:
     optional: true
 ```
 
+For more information about required and optional dependencies, see [Dependencies](tile-structure.html#dependencies) in _How Tiles Work_.
+
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