diff --git a/README.md b/README.md
index d69a330..5199ab4 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,11 @@
 
 A parallel text editor using electron
 
-## Install
-Download [the latest package](https://github.com/ffreemt/ptextpad-electron/releases) and install.
+## What is `ptextpad`
+`ptextpad` is a parallel text editor intended for editing two texts in a two-column manner. `ptextpad` incorperates some automatic alignment engines (currently just `ezbee` and for Chinese-English texts) and `mlbee` for many many laugnage pairs.
+
+## Install (currently Windows 64-bit only)
+Download assets from [the latest package](https://github.com/ffreemt/ptextpad-electron/releases) and install.
 
 Or from source
 ```
@@ -15,11 +18,14 @@ npm install  # or yarn
 npm run dev  # yarn dev
 ```
 
-## What's new
-`mlbee` has been integrated into `ptextpad`.
+## Usuage tips
+* Double-click or press Enter to edit a cell
+* Press Enter or click another cell to exit the in-cell editor
+* Click SaveEdit (Ctl-E) to effect change after editing
 
-## What is `ptextpad`
-`ptextpad` is a parallel text editor intended for editing two texts in a two-column manner. `ptextpad` incorperates some automatic alignment engines (currently just `ezbee` for Chinese-English texts).
+## What's new
+* SaveEdit (manual editing and save) ready
+* `mlbee` has been integrated into `ptextpad`.
 
 ## TODO
 * `ptextpad-el` currently just has `ezbee` automatic alignment support that replies on a remote server. Supports for `dzbee`, `debee` along with a possible local server are in plan phase. Installation packages for Linux/macOs will be provided later on. Stay tuned.