Update README.md

Author: ariaieboy

README.md

@@ -39,8 +39,10 @@
 |:-:|:-:|
 |`swatch`|`sail npm run watch`|
 |`sdev`|`sail npm run dev`|
+|`sbuild`|`sail npm run build`|
 |`sprod`|`sail npm run production`|
 
+
 ### Testing
 | Alias | Description |
 |:-:|:-:|