make submodule add optional in the docs

README.md

@@ -87,14 +87,19 @@ The Images links on [Docker Hub](https://hub.docker.com/u/laradock/)
 <a name="Installation"></a>
 ## Installation
 
-1 - Clone the `LaraDock` repository, in any of your `Laravel` projects *(using this command)*:
+1 - Clone the `LaraDock` repository, in any of your `Laravel` projects:
 
 ```bash
-git submodule add https://github.com/LaraDock/laradock.git docker
+git clone https://github.com/LaraDock/laradock.git docker
 ```
 
->This should create a `docker` folder, on the root directory of your Laravel project.
+Instead of `git clone` you can use `git submodule add` in case you are already using Git for your Laravel project *(Recommended)*:
+
+```bash
+git submodule add https://github.com/LaraDock/laradock.git docker
+```
 
+>These commands should create a `docker` folder, on the root directory of your Laravel project.
 
 
 <a name="Usage"></a>