Added Medium URL to outputs

[amrojsandhu]

Added:

• Output: Medium URL, to make take the automation further, for example, auto sharing in Linkedin.

[maZahaca]

Thanks for PR. I merged new version -> https://github.com/InfraWay/post-medium-action/releases/tag/v1.2.0

[maZahaca]

@amrojsandhu btw, are you working on another automations in this field? As I think we're working on the same thing.

[amrojsandhu]

@maZahaca I am trying to automation the whole blogging process for my self. I write in Notion. So, starting there I have automated whole process to publish on github pages. Further, I am automating Medium publish and buffer.com share.