Drop 'autoescape' from Soy template example

Soy templates no longer support the autoescape parameter. So compiling
the example template failed with

  Unsupported attribute 'autoescape' for 'template' tag, expected one of [visibility, kind, requirecss, cssbase, stricthtml, whitespace].

So we drop the autoescaping from the example, as strict autoescaping is
the default anyways according to

  https://github.com/google/closure-templates/commit/7ec73614d32ff72acb22c64b0841362b06f9d1bf

Change-Id: I4e2dc440041358759e6d8b789747c1fd15ab1983
diff --git a/src/main/resources/Documentation/config-rulebase-common.md b/src/main/resources/Documentation/config-rulebase-common.md
index d232e57..51048a9 100644
--- a/src/main/resources/Documentation/config-rulebase-common.md
+++ b/src/main/resources/Documentation/config-rulebase-common.md
@@ -656,7 +656,7 @@
  * @param changeNumber
  * @param formatChangeUrl
  */
-{template .TemplateName autoescape="strict" kind="text"}
+{template .TemplateName kind="text"}
   inline Comment for change {$changeNumber} added. See {$formatChangeUrl}
 {/template}
 ```