Documented translations

README.md

         "you@example.tld",
         "someone.else@example.com"
     ],
-    "formOrigin": "https://example.tld"
+    "formOrigin": "https://example.tld",
+    "language": "en"
 }
 ```
 
 The `mailserver` section is the set of parameters which will be passed to nodemailer's transporter initialisation, describing the output mail server and following the same structure as the `option` object in [nodemailer's SMTP configuration section](https://github.com/nodemailer/nodemailer#set-up-smtp). Please head there to have the full list of parameters.
 
-The `recipients` server is an array containing the e-mail addresses any message sent via the form will be sent to. Just write down the form's recipient(s)'s addresse(s).
+The `recipients` section is an array containing the e-mail addresses any message sent via the form will be sent to. Just write down the form's recipient(s)'s addresse(s).
 
-Finally, the `formOrigin` part is a string containing the origin of the page you'll include the contact form into. This allows SMAM to work with the [Cross-Origin Resource Sharing (CORS)](https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS) security most browser use. For more info on how to fill this field, and what is an origin, please give a look at [the MDN's definition](https://developer.mozilla.org/en-US/docs/Glossary/origin).
+The `formOrigin` part is a string containing the origin of the page you'll include the contact form into. This allows SMAM to work with the [Cross-Origin Resource Sharing (CORS)](https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS) security most browser use. For more info on how to fill this field, and what is an origin, please give a look at [the MDN's definition](https://developer.mozilla.org/en-US/docs/Glossary/origin).
+
+Finally, the `language` string tells SMAM in which language you want your form served. Possible values are all the files in `locales/`'s names (without the `.json`). To create your own translation, please read the section below.
 
 ## Templating
 
 
 I think that the code in itself is clear enough, if not please tell me so I can detail everything here!
 
+## Translating
+
+Right now, SMAM is only available in French and English. If you want to implement your own language, you can do so by creating a new file in the `locales/` directory, named following your language's identifier with the `.json` extension (`en.json` for exemple). You can then have a look at the strings in `en.json`, copy them and translate them in your language. To use this translation, just set the `language` field (in your settings file) to your language's identifier.
+
+As I don't speak all languages, [pull requests](#contribute) with new languages are more than welcome! You'd be sharing your knowledge with the whole community and help more people using SMAM around the world :smile:
 
 ## Contribute