Add unist-plugin-log-tree to list of plugins

[talatkuyuk]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and discussions and couldn’t find anything or linked relevant results below
• I made sure the docs are up to date
• I included tests (or that’s not needed)

Description of changes

unist-plugin-log-tree is useful when you want to inspect, debug, or snapshot syntax trees during a unified processing pipeline.

unist-plugin-log-tree logs and optionally filters unist syntax trees for debugging purposes.

It is a universal syntax tree (unist) plugin for mdast, hast, esast, and other unist-based trees. It does not mutate the tree; it only inspects and logs it for debugging.

Since it is not a util, I've created a plugins section in the README.

This change adds unist-plugin-log-tree into plugin list.

[remcohaszing]

This is a unified plugin. unist doesn’t really have a plugin concept.

I guess it could be added in https://github.com/unifiedjs/unified#plugins. Though currently this doesn’t list community plugins yet.

[talatkuyuk]

I understand, I will change the name I suppose.

Which is suitable for convention ?

• unified-log-tree
• unified-plugin-log-tree

[remcohaszing]

unified-log-tree

None of the plugins I can think of has “plugin” in the name.