docs: add clarity

README.md

@@ -18,9 +18,13 @@ The following must be installed on the system prior to development.
 
 1. Clone the project locally.
 
+    Choose one of the following methods.
     ```console
     $ git clone https://git.nixnet.services/adamsdesk/symfony-mailer-example.git
     ```
+    ```console
+    $ git clone git@git.nixnet.services:adamsdesk/symfony-mailer-example.git
+    ```
 1. Install all dependencies.
     ```console
     $ composer install