update readme

README.md

@@ -2,29 +2,33 @@
 
 ### How to use (Linux x64 only):
 
-#### Dependencies:
+#### Install Dependencies:
 + numpy
 + PIL
 
+#### Get Necessary Files:
 + Get /data/data/com.tencent.mm/MicroMsg/long-long-name/EnMicroMsg.db from rooted phone:
-+ Get wechat uin:
++ Get Wechat resource directory, usually at storage:/tencent/MicroMsg/long-long-name
++ Get Wechat uin:
 	+ login to [web-based wechat](https://wx.qq.com); get wxuin=1234567 from `document.cookie`
 	+ Or get ``default_uin`` from /data/data/com.tencent.mm/shared_prefs/system_config_prefs.xml.
 + Get phone IMEI:
 	+ Call `*#06#` on your phone
 	+ Or find IMEI in system settings
 	+ Or use `adb shell dumpsys iphonesubinfo | grep 'Device ID' | grep -o '[0-9]*'`
+
+#### Run:
 + Decrypt database and get decrypted_database.db:
 ```
 ./decrypt_db.sh <path to EnMicroMsg.db> <imei> <uin>
 ```
-+ Parse and dump messages of every contact:
++ Parse and dump text messages of every contact:
 ```
 ./dump_msg.py decrypted_database.db output_dir
 ```
 + Dump messages of one contact to html (for now, raw message only):
 ```
-./dump_html.py decrypted_database.db CONTACT_NAME
+./dump_html.py decrypted_database.db <resource directory> <contact name> output.html
 ```
 
 ### TODO