Add top build shell script

guowenxue

19 hours ago 000034a74bd306535c4c4ca715587c08142c6b55

 README.md

@@ -2,3 +2,9 @@

LingYun open library local/cross compile shell scripts

Update cross compiler:

```bash
find -name "build.sh" -exec sed -i "s|^CROSS_COMPILE=.*|CROSS_COMPILE=/opt/gcc-aarch32-10.3-2021.07/bin/arm-none-linux-gnueabihf-|g" {} \; 
```