[OTHER] feature: Add docker parameters

[astralwaveio]

Add docker parameters

Can you add a parameter to set the default language(locales) when deploying with docker?

eg: docker run -d --name it-tools --language fr --restart unless-stopped -p 8080:80 corentinth/it-tools:latest

[java4candy]

I also need to be supported the parameter

[sharevb]

Will probably make a PR