docs(filtering): Add Filtering Docs (#1017)

docs(infinite-scroll): improve example (#1017)

docs/guide/filtering.md

@@ -0,0 +1,19 @@
+Vue Select provides two props accepting `functions` that can be used to implement custom filtering
+algorithms.
+
+- `filter` <Badge text="v2.5.0+" />
+- `filterBy` <Badge text="v2.5.0+" />
+
+By default, the component will perform a very basic check to see if an options label includes
+the current search text. If you're using scoped slots, you might have information within the
+option templates that should be searchable. Or maybe you just want a better search algorithm that
+can do fuzzy search matching.
+
+## Filtering with Fuse.js
+
+You can use the `filter` and `filterBy` props to hook right into something like
+[Fuse.js](https://fusejs.io/) that can handle searching multiple object keys with fuzzy matchings.
+
+<FuseFilter />
+
+<<< @/.vuepress/components/FuseFilter.vue

docs/guide/infinite-scroll.md

@@ -4,8 +4,8 @@ by hooking into the `open`, `close`, and `search` events, along with the `filter
 
 Let's break down the example below, starting with the `data`.
 
-- `observer` - when the component is mounted, a new `IntersectionObserver` will be set here
-- `limit` - the number of options to display 'per page'
+- `observer` - a new `IntersectionObserver` with `infiniteScroll` set as the callback
+- `limit` - the number of options to display
 - `search` - since we've disabled Vue Selects filtering, we'll need to filter options ourselves
 
 When Vue Select opens, the `open` event is emitted and `onOpen` will be called. We wait for