fix(docs): Update plugins documentation

markdown/dev/reference/plugins/en.md

@@ -6,7 +6,28 @@ FreeSewing uses a modular approach where functionality can be extended with
 plugins. Plugins can provide macros, store methods, or use any of the lifecycle
 hooks.
 
-We maintain the following plugins:
+## Using plugins
+
+Plugins can be either
+[added to part configurations](/reference/api/part/config/plugins) in designs or
+[added to a pattern instance with Pattern.use()](/reference/api/pattern/use).
+
+To import a plugin for use:
+```js
+import { namePlugin } from { @freesewing/plugin-name }
+// or
+import { pluginName } from { @freesewing/plugin-name }
+```
+
+<Tip>
+
+For convenience, each plugin is exported in two name formats:
+"plugin\<Name>" and "\<name\>Plugin".
+For example, either `pluginBanner` or `bannerPlugin` can be used.
+
+</Tip>
+
+## Plugins we maintain
 
 <ReadMore />