Required both package for builds | Yarn

Author: jhdcruz

docs/build.md

@@ -82,22 +82,18 @@ Distribution packages are created by exec `grunt build` on Linux platform (e.g.
 
 After installing the supported version of `node` and `npm`, install build dependency packages.
 
-**Ubuntu/Debian:**
-
 ```
-$ npm i -g grunt-electron-installer-debian
+$ yarn add --dev grunt-electron-installer-debian grunt-electron-installer-redhat
 ```
 
+**Ubuntu/Debian:**
+
 ```
 $ sudo apt-get install -y rpm fakeroot
 ```
 
 **Fedora:**
 
-```
-$ npm i -g grunt-electron-installer-redhat
-```
-
 ```
 $ sudo dnf install -y dpkg dpkg-dev rpm-build fakeroot
 ```