chore: add JinaReaderConnector to README

[anakin87]

Related Issues

• part of Add support for Reader API to convert HTMLs into Documents #663

Proposed Changes:

We added this new component in #1150, but I forgot to add it to README, so I'm adding it.

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.

[vblagoje]

It is a whole new type of component in integrations, do we need to add it somewhere else as well @dfokina ?

[anakin87]

It is a whole new type of component in integrations, do we need to add it somewhere else as well @dfokina ?

Thanks, I will create an issue for documenting the new component: #1212

The API reference is already published: https://docs.haystack.deepset.ai/reference/integrations-jina#module-haystack_integrationscomponentsconnectorsjinareader