Prepare for release

CHANGES.md

 # Release notes
 
+## 0.1.1 - April 28th, 2022
+
+* Include a WebAR demo with a QR code on the website
+* Update the computation of the modelViewMatrix
+* Increase the distance of the far plane (viewing frustum)
+
 ## 0.1.0 - April 21st, 2022
 
 * Initial release

README.md

 
 Get started at <https://alemart.github.io/martins-js/>
 
-![WebAR demo](docs/img/demo-cool3.gif)
-
 MARTINS.js is [dual licensed](#author). It is currently in beta.
 
 ## Features
 4. Scan the cartoon below.
 5. Enjoy! :wink:
 
-> &nbsp;
+> ---
 > **Guidelines for WebAR:**
 > - WebGL2 and WebAssembly are required. Use a [compatible browser](#browser-compatibility).
 > - Don't move the camera too quickly - it produces motion blur.
 > - The physical environment should be properly illuminated.
 > - Avoid low-quality cameras (cameras of common smartphones are OK).
-> &nbsp;
+> ---
 
-| Cartoon | QR code |
+| Cartoon | &nbsp; |
 | - | - |
 | [![Reference Image](docs/demo/my-reference-image.webp)](docs/demo/my-reference-image.webp) | [![QR code](docs/demo/qr-code.png)](https://alemart.github.io/martins-js/demo/) |
 

docs/demos.md

     flex-direction: row;
     flex-wrap: wrap;
     align-items: flex-end;
-    justify-content: space-between;
+    justify-content: space-evenly;
 }
 
 .gallery-item {
 
 @media screen and (min-width: 600px) {
     .gallery-item {
-        flex-basis: 40%;
-    }
-
-    .gallery-item-3 {
-        flex-basis: 30% !important;
+        flex-basis: 30%;
     }
 }
 
 
 # WebAR demos
 
-Welcome to my demo gallery! Here you'll find some cool examples of what you can do with MARTINS.js. Feel free to adapt my demos and also to study my code. My demos are available for a fee, which helps my work.
+Welcome to my demo gallery! Here you'll find some cool examples of what you can do with MARTINS.js. Feel free to adapt my demos and also to study my code.
+
+!!! info "Derivative works"
+
+    The Free Edition of MARTINS.js is included with my demos. Before creating derivative works of my demos, make sure to [pick the right edition for you](./download.md){ ._blank }.
+
+## Free demos
+
+The following free demos will help you get started:
+
+<div class="gallery-grid" markdown>
+<div class="gallery-item" markdown>
+<a href="https://ko-fi.com/s/058542943d" rel="external" target="_blank">
+
+![](./img/demo-hello.webp)
+
+**Hello, world!**
+
+</a>
+</div>
+<div class="gallery-item" markdown>
+<a href="https://ko-fi.com/s/25f4038f8b" rel="external" target="_blank">
+
+
+![](./img/demo-webgl.jpg)
+
+**Render with WebGL (3D)**
+
+</a>
+</div>
+</div>
 
-The Free Edition of MARTINS.js is included with my demos. The Professional Edition is available [separately](./download.md){ ._blank }. Before creating derivative works of my demos, make sure to [pick the right edition](./download.md){ ._blank } for you. If you have questions, feel free to [reach out](./contact.md){ ._blank }.
 
-## Glue codes
 
-MARTINS.js scans the physical environment, but it doesn't render virtual content. You need a 3D rendering technology for that. Glue codes link MARTINS.js to different 3D rendering technologies. My glue codes are compatible with both the Free and the Professional Edition of MARTINS.js.
+## Glue codes
 
-AFRAME is the easiest choice for non-coders. If you're a coder, all choices are good. A basic demo is included with all of them.
+MARTINS.js scans the physical environment, but it doesn't render virtual content. Third-party 3D rendering technologies can help you with that. Glue codes link MARTINS.js to different 3D rendering technologies. My glue codes are compatible with both the Free and the Professional Edition of MARTINS.js. A basic demo is included with all of them.
 
 <div class="gallery-grid" markdown>
-<div class="gallery-item gallery-item-3" markdown>
+<div class="gallery-item" markdown>
 <a href="https://ko-fi.com/s/24523f7548" rel="external" target="_blank">
 
 ![](./img/logo-aframe.png "A-Frame logo by Mozilla")
 
 </a>
 </div>
-<div class="gallery-item gallery-item-3" markdown>
+<div class="gallery-item" markdown>
 <a href="https://ko-fi.com/s/eea4077938" rel="external" target="_blank">
 
 
 
 </a>
 </div>
-<div class="gallery-item gallery-item-3" markdown>
+<div class="gallery-item" markdown>
 
 ![](./img/logo-babylonjs.png "Babylon.js logo by David Catuhe")
 
 </div>
 </div>
 
+!!! tip Tip
 
+    AFRAME is the easiest choice for non-coders. If you're a coder, all choices are good.
 
-## For newbies
-
-These simple demos help you get started with WebAR. They are great learning material!
-
-<div class="gallery-grid" markdown>
-<div class="gallery-item" markdown>
-<a href="https://ko-fi.com/s/058542943d" rel="external" target="_blank">
 
-![](./img/demo-hello.webp)
+## Fun & games
 
-**Hello world with MARTINS.js**
+WebAR can be a lot of fun. More demos coming soon!
 
-</a>
-</div>
+<div class="gallery-grid" markdown>
 <div class="gallery-item" markdown>
 <a href="https://ko-fi.com/s/1d3c7e401c" rel="external" target="_blank">
 
 
 
 
-## Fun & games
-
-Soon!
-
-
-
 ## Need something else?
 
 You need a WebAR experience tailored for you, but you are unable to do it yourself. Is that your situation? Feel free to make a request!