Update readme

Author: v1ack

README.md

@@ -1,6 +1,6 @@
 # svelte-virtual-scroll-list
 
-![npm](https://img.shields.io/npm/v/svelte-virtual-scroll-list?style=for-the-badge)
+[![npm](https://img.shields.io/npm/v/svelte-virtual-scroll-list?style=for-the-badge)](https://npmjs.com/package/svelte-virtual-scroll-list/)
 
 Svelte implementation of vue library [vue-virtual-scroll-list](https://github.com/tangbc/vue-virtual-scroll-list)
 
@@ -15,6 +15,59 @@ Online demo: [https://v1ack.github.io/svelte-virtual-scroll-list/](https://v1ack
 
 [Simple example in Svelte REPL](https://ru.svelte.dev/repl/eae82aab17b04420885851d58de50a2e?version=3.38.2)
 
+# Getting started
+
+## Installing from npm
+
+`npm i svelte-virtual-scroll-list -D`
+
+or
+
+`yarn add svelte-virtual-scroll-list -D`
+
+## Using
+
+```html
+
+<script>
+    import VirtualScroll from "svelte-virtual-scroll-list"
+
+    let items = [{id: 1, text: "one"}, ...]
+</script>
+<div class="vs">
+    <VirtualScroll
+            data={items}
+            key="id"
+            let:data
+    >
+        <div slot="header">
+            This is a header set via slot
+        </div>
+        <div>
+            {data.text}
+        </div>
+        <div slot="footer">
+            This is a footer set via slot
+        </div>
+    </VirtualScroll>
+</div>
+```
+
+More examples available in `example` folder
+
+# Comparing to other virtualizing components
+
+| |svelte-virtual-scroll-list|svelte-virtual-list|svelte-tiny-virtual-list|
+|---|---|---|---|
+|handle dynamic size data|+|+|-|
+|scroll methods (to index)|+|-|+|
+|infinity scrolling|two-directional|-|one-directional with another lib|
+|initial scroll position|+|-|+|
+|sticky items|-|-|+|
+|top/bottom slots|+|-|+|
+|reached top/bottom events|+|-|-|
+|document as a list|+|-|-|
+
 # API
 
 ## Props