Documentation guide

New documentation standards

1. All new documentation should be in Markdown format. Except index files and special cases.

2. However, usage of RST blocks is not restricted.

Update of old documentation guide

Old documentation files, partly located in docs/source.old folder. You can take any file from there and update it for new version.

1. First check is information is anyhow connected to geocoder3 project, or completely absolute.

2. If information is completely outdated - remove related file, and make a PR with description of delete reason.

3. If information has sense, please update a file, convert it to Markdown and include in current documentation.