Update README.md

Author: sharow

README.md

@@ -12,11 +12,12 @@ tiny asymmetric-coroutine library.
 + C11
 
 ## Supported Platforms
-|         | x86_64              | i686                     | ARM(v6/v7)               | note             |
-|---------|---------------------|--------------------------|--------------------------|------------------|
-| Linux   | :heavy_check_mark:  | :heavy_check_mark:       | :heavy_check_mark:       |                  |
-| FreeBSD | :heavy_check_mark:  | :heavy_check_mark:       | :question:               |Thanks [@t6](https://github.com/t6)|
-| OSX     | :heavy_check_mark:  | :heavy_multiplication_x: | :heavy_multiplication_x: |Thanks [@kpamnany](https://github.com/kpamnany) |
+|              | x86_64              | i686                     | ARM(v6/v7)               | AArch64            | (contributor)    |
+|--------------|---------------------|--------------------------|--------------------------|--------------------|------------------|
+| Linux        | :heavy_check_mark:  | :heavy_check_mark:       | :heavy_check_mark:       | :heavy_check_mark: |                  |
+| FreeBSD      | :heavy_check_mark:  | :heavy_check_mark:       | :question:               | :question:         |[@t6](https://github.com/t6)|
+| OSX          | :heavy_check_mark:  | :heavy_multiplication_x: | :heavy_multiplication_x: | :heavy_check_mark: |[@kpamnany](https://github.com/kpamnany) |
+| (contributor)|                     |                          |                          |[@mitghi](https://github.com/mitghi)| |
 
 ## Code Example
 
@@ -77,7 +78,7 @@ total = 55
 ```
 
 ## Requirements for build
-- [nasm](http://www.nasm.us/)
+- for x86_64/i686: [nasm](http://www.nasm.us/)
 
 
 ## Installation