add missing references to DesignDoc and KnownIssues
diff --git a/googlemock/docs/documentation.md b/googlemock/docs/documentation.md
index 0f19e6f..831598c 100644
--- a/googlemock/docs/documentation.md
+++ b/googlemock/docs/documentation.md
@@ -7,7 +7,8 @@
* [ForDummies](for_dummies.md) -- start here if you are new to Google Mock.
* [CheatSheet](cheat_sheet.md) -- a quick reference.
* [CookBook](cook_book.md) -- recipes for doing various tasks using Google Mock.
- * [FrequentlyAskedQuestions](frequently_asked_questions.md) -- check here before asking a question on the mailing list.
+ * [DesignDoc](design_doc.md) -- design of and rationale behind some Google Mock features.
+ * [FrequentlyAskedQuestions](frequently_asked_questions.md) and [KnownIssues](known_issues.md) -- check here before asking a question on the mailing list.
To contribute code to Google Mock, read:
