OZ-340: README as per Ozone's rebranding.

[kdaud]

Ticket: https://mekomsolutions.atlassian.net/browse/OZ-340

This PR updates the README to match the Ozone's rebranding.

[mks-d]

I'm ambivalent here to mix the the usual README with distro-specific "branding".

If so then it should be a bit prettier and better balanced.

I did a couple of things (scroll down for the result).

• I centered everything, otherwise it looks really awkward.
• I improved the description of what Ozone Haiti is.
• I removed the pointers to the commands, because it's already in the docs, for which there is a link in the rebranded frame insert.
• In the usual Ozone rebranded frame insert:
  • I added a 'Code' link item.
  • I made the logo smaller, otherwise it's too prominent vs the branding of Ozone Haiti higher up.
  • I removed "Welcome to Ozone's open-source repositories!"... because that is indeed not where we are there, we are on the repositories for Ozone Haiti (in this case, Mekom's repositories).

Another option is to drop the standard frame insert altogether and make this just about Ozone Haiti, full stop.

@rbuisson what do you think?

Ozone Haiti 🇭🇹

Ozone Haiti is a starter EMR/HIS distribution tailored for healthcare facilities in Haiti.
Built with Ozone, it includes common configurations and master data specifically designed for use in Haitian settings.

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The Instant HIS

Engage with the Ozone community and access useful resources below:

Code    •    Docs    •    Forum    •    Chat Room

[rbuisson]

I think those changes make it look much more consistent.
Regarding keeping the Ozone branding or not, I think we very much should keep it.