diff --git a/README.md b/README.md
index 524a233..fdb5b7e 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,14 @@
 * CSS property [scroll-snap-type](https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-type) for snapping
 * CSS property [scroll-behavior](https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-behavior) for smooth JS scrolling
 * `loading` attribute for [Native Lazy Loading](https://web.dev/native-lazy-loading/)
-* compatible with [lazysizes.js](https://github.com/aFarkas/lazysizes)
+* Compatible with [lazysizes.js](https://github.com/aFarkas/lazysizes)
 * [Custom Events](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements)
-* it was named as `native-gallery` to become [Custom Element](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements) in the future
+* It was named as `native-gallery` to become [Custom Element](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_custom_elements) in the future
+* Disadvantages: circular scrolling is [not implemented yet](https://github.com/korywka/native-gallery/pulls) 🤷‍♀️
 
-## Usage 
+## Usage
+
+npm package: [native-gallery](https://www.npmjs.com/package/native-gallery)
 
 ```javascript
 import NativeGallery from 'native-gallery';
diff --git a/example/index.html b/example/index.html
index be41643..5957b19 100644
--- a/example/index.html
+++ b/example/index.html
@@ -9,6 +9,11 @@
   <link href="./example.css" rel="stylesheet">
 </head>
 <body>
+  
+<a href="https://github.com/korywka/native-gallery" class="github-corner" aria-label="View source on GitHub">
+  <svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg>
+</a>
+<style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
 
 <div class="wrapper">
   <h1>Native Gallery</h1>
@@ -38,4 +43,4 @@ <h1>Native Gallery</h1>
 <script type="module" src="example.js"></script>
 
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/example/lazysizes.html b/example/lazysizes.html
index 02996ba..522a1cc 100644
--- a/example/lazysizes.html
+++ b/example/lazysizes.html
@@ -10,6 +10,11 @@
 </head>
 <body>
 
+<a href="https://github.com/korywka/native-gallery" class="github-corner" aria-label="View source on GitHub">
+  <svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg>
+</a>
+<style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
+
 <div class="wrapper">
   <h1>Native Gallery</h1>
 
@@ -39,4 +44,4 @@ <h1>Native Gallery</h1>
 <script type="module" src="example.js"></script>
 
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/yarn.lock b/yarn.lock
index 7af7833..618c948 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -560,9 +560,9 @@ levn@^0.4.1:
     type-check "~0.4.0"
 
 lodash@^4.17.14, lodash@^4.17.19:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 magic-string@^0.25.0, magic-string@^0.25.7:
   version "0.25.7"
