MiniFlux - Subscriptions

1. If no specific parameters are specified, all subscription sources will be output by default. 2. Please obtain the Category ID or Subscription Source ID on the `Category` (shortcut `g` `c`) or `Source` (shortcut `g` `f`) page. The URL of each category (or subscription source) will display its ID information. 3. Support for category names and category IDs, to output multiple categories, please repeat entering `category=` and connect with `&`, or directly use **English** commas between different category names. For example, you can subscribe through `/miniflux/subscription/category=technology&category=1` or `/miniflux/subscription/categories=technology,1`. 4. Support specifying the subscription source name or subscription source ID, similar to setting categories. For example, you can subscribe through `/miniflux/subscription/feed=1&feed=Archdaily` or `/miniflux/subscription/feeds=1,Archdaily`. 5. Support simultaneously specifying subscription source information and category information; it will output subscription sources that meet the selected categories' criteria. Consider an example: by using `/miniflux/subscription/feeds=1,archdaily&category=art,7`, if the Subscription Source ID is 1 or the Subscription Source Name is ArchDaily indeed falls under Category 'art' or has a Category ID of 7, then output that subscription source information.