Add basic doc for the handbook

pages/Changelog.md

@@ -1,7 +1,7 @@
 ## Beta 0.9.20 [[Nov 1st, 2023]]
 Desktop app and Android App download link: <https://github.com/logseq/logseq/releases/tag/0.9.20>
 	- [[Features]]
-		- New handbook [#8524](https://github.com/logseq/logseq/pull/8524)
+		- New handbook [#8524](https://github.com/logseq/logseq/pull/8524) - [Documentation]([[Handbook]])
 	- [[Thanks]]
 		- [[CorrectRoadH]]
 			- Support zoom via touchpad in [#10435](https://github.com/logseq/logseq/pull/10435)

pages/Handbook.md

@@ -0,0 +1,11 @@
+type:: [[Feature]]
+platforms:: [[All Platforms]]
+description:: Provides in app documentation in the form of short tutorials 
+initial-version:: 0.9.20
+
+- ## Usage
+	- In the lower right corner of the app, there is a `?` icon. Click it and then choose the `Handbook` menu item.
+- ## Functionality
+	- This features provides in app documentation for the most important concepts and common questions. The documentation is usually in the form of short tutorials and not meant to be complete, reference documentation like on https://docs.logseq.com/.
+- ## Additional Links
+	- https://github.com/logseq/handbooks - Source code for the handbook docs and where to start if you're interested in contributing to it