update README.md

Author: TPPPP72

README.md

@@ -1,9 +1,32 @@
 # AutoTask
-
-This is a software that allows you to customize your PC's startup plans and do some consistent works.  
+This is a software that allows you to customize your PC's startup plans and do some constant works.  
 
 ## How to config
-Waiting for writing......
+Currently, it support the constant time-slot tasks.  
+Your config file should be named as `rule.conf`.  
+All your config should be included in `[]`.  
+Each rule must have $4$ parameters:`Command`, `Date`, `Time`, `Sleep`.  
+When you declare a parameter in the first level [], that parameter will be given to **all rules**.
+The following is the syntax for declaring each parameter:
+```
+//Command (call cmd.exe to run)
+Command{commmand1,command2}
+
+//Date (Sun,Mon,Tue,Wed,Thu,Fri,Sat)
+Date{Mon,Fri,Sat}
+
+//Time (xx:xx-xx:xx)
+Time{7:00-12:00,14:00-18:00}
+
+//Sleep (ms)
+Sleep{3000}
+```
+Here is a simply full file sample:  
+```
+//rule.conf
+[Command{taskkill /f /im 1.exe},[Date{Mon},Time{7:00-9:00}],[Date{Tue,Wed,Thu},Time{9:00-11:00}]]
+```
+It means executing the command “taskkill /f /im 1.exe” on Monday from 7:00 am to 9:00 am and on Tuesday, Wednesday and Thursday from 9:00 am to 11:00 am.
 
 ## How to build
 This is a C++ project, please config a compiler in your environment variables.