Add instructions to create and use the binaries locally

Author: filafb

docs/contributing.md

@@ -15,6 +15,25 @@ To be able to use it you'll have to add `$HOME/.vtex/dev/bin` to your `PATH` env
 
 That's it! Now you're able to run `yarn watch` and, on another terminal session, use the command `vtex-test` as an alias to what you're developing.
 
+### Building the binaries locally and testing them
+You can build the binaries and test it locally. You can run the commands:
+
+```
+yarn build && yarn oclif-dev pack
+```
+
+A folder named `dist` will be created with all the binaries for different OS. The command below enable to use the binaries for MacOS:
+
+```
+tar -xzf /Users/fila/Code/vtex/toolbelt/dist/vtex-v4.3.0/vtex-v4.3.0-darwin-x64.tar.gz -C ~/.local/vtex # or copy it to any other folder you want
+```
+
+Now, you can use the binaries in a VTEX IO App as:
+
+```
+~/.local/vtex/vtex/bin/vtex --version # or any other command
+```
+
 ### Adding commands
 
 The VTEX CLI uses [Ocliff](https://oclif.io/) under the hood, making it very easy to add or improve commands. Follow [this guide](https://oclif.io/docs/commands) to learn how to develop on this project.