Documentation improvements

[turn1a]

A catch-all ticket to gather documentation improvement ideas.

1. Mark code blocks in README.md's Markdown with specific language - you can use

```python

or

```yml

at the beginning of a code block to enable syntax highlighting.

[Galileo-Galilei]

Hello @kaemo, this is the next task I will be working on. I have in mind the following items (in addition to your remark):

• Add community files to enforce collaboration (I will likely stick to github defaults here):

  • Code of conduct
  • Contributing guidelines
  • Issue templates
  • Pull request template

• Define a detailed overview of the documentation structure.

  • Introduction
    • introduction.md : Description of kedro and mlflow, and brief comparison
    • motivation.md : justification for the need of a plugin to fill a gap

• Correct the README which is obsolete since kedro release 0.16.

[Galileo-Galilei]

Update the readme:

• Add a section to warn for the beta status of the plugin (and specify we use SemVer)
• Add a section with comptibiltiy between mlflow, kedro and kedro mlflow different versions
• Move "main contributors" section to the end of the README with the contributing section