chore(release): 3.1.0 [skip ci]

# [3.1.0](v3.0.1...v3.1.0) (2024-09-05)

### Bug Fixes

* [#47](#47) ([7252026](7252026))
* changes on positive and negative articles, close [#47](#47) ([e46bfe3](e46bfe3))
* delete recommendation articles to avoid conflicts ([5446534](5446534))

### Features

* do not consider an article negative if it is already positive for a topic ([eef588c](eef588c))
* update README and recommendation settings ([b2924bb](b2924bb))