Improved rss readme

[bholmesdev]

Changes

This tightens up the RSS README to remove unneeded guide pages (consistent with integration readmes) and reduce complexity of config options.

• Remove the guide section and reference our docs entry
• Inline the RSSFeedItem docs under items
• Remove a duplicate docs section for content
• Update types to show field types instead of object
• Add support and contributing sections based on other integration READMEs

Testing

N/A

Docs

Follow up from this discussion on the RSS docs.

Follow ups

We should remove the inline documentation for item options and link to this README as a single source of truth. This should prevent out-of-date options. We should also clearly link to this README to learn more about config options.

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[sarah11918]

Hey @bholmesdev this is fantastic! (And, makes me really want to see this as a proper integration 😅 )

Left some stray thoughts below! 🙌

[sarah11918]

So two things here:

1. A second sentence like "This is used to/for" with plain language explanation of the purpose here would be nice.

2. If the URL is just an example, then standard practice is to use example.com EVERYWHERE, even when other URLs seem fun.

[bholmesdev]

This took me down a rabbithole to understand what xmlns even is. Learned a lot! Updated the entry to give a practical example

[ematipico]

I leave the final OK to Sarah :) once she gives the gree light, we can merge it

[sarah11918]

Thanks @bholmesdev ! Left some follow up and I think you should have all the feedback you need from me to make your final judgement calls, and merge at will! 🫡