explain reasoning of using the topic

README.md

@@ -152,7 +152,7 @@ end
 
 ### Discoverability
 
-Fisher doesn't support a central repository of plugins for flexibility and simplicity. However, that doesn't mean making plugins discoverable should be hard. One convention most popular Fisher plugins follow is tagging the repository with [fish-plugin](https://github.com/topics/fish-plugin).
+For simplicity and flexibility, Fisher doesn't make use of a central repository of plugins. However, that doesn't mean discovering new plugins should be hard. One convention most popular Fisher plugins follow is tagging the GitHub repository with the topic [fish-plugin](https://github.com/topics/fish-plugin), which puts it on a page containing other Fisher plugins that is sortable and users can subscribe to for updates.
 
 ## Acknowledgments