Update doc

Author: rexzhang

README.md

@@ -19,36 +19,40 @@ now +1d
 now -1w
 ```
 
-key | unit
---- | ---
-ms | microseconds(not support yest)
-s | seconds
-m | minutes
-h | hours
-d | days
-w | weeks
-M | months
-q | quarters(not support yest)
-y | years
+| key | unit                           |                           
+|-----|--------------------------------|
+| ms  | microseconds(not support yest) | 
+| s   | seconds                        |
+| m   | minutes                        |
+| h   | hours                          |
+| d   | days                           |
+| w   | weeks                          |                          
+| M   | months                         |                       
+| q   | quarters(not support yest)     |     
+| y   | years                          |                          
 
 ## Get it
 
 Download
-from [Github release](https://github.com/rexzhang/alfred-workflow-time-converter/releases)
+from [GitHub release](https://github.com/rexzhang/alfred-workflow-time-converter/releases)
 , double click package file to install.
 
 ## History
 
-### 0.1.0
+### 0.3.0
 
-- first release
+- support python3
 
 ### 0.2.0
 
 - support time zone
 - support time shift
 
-## Will
+### 0.1.0
+
+- first release
+
+## Todo
 
 - multi time shift args?
 - time shift support ms/q