doc: add smart border radius and tiling context menu to README.md (#225)

Author: domferr

Diff for: README.md

@@ -32,7 +32,8 @@ Have issues, you want to suggest a new feature or contribute? Please open a new
 | [⬇️](#tiling-system) Tiling System | [⬇️](#snap-assistant) Snap Assistant | [⬇️](#select-a-layout) Select a layout | [⬇️](#select-multiple-tiles) Select multiple tiles |
 |:---|:---|:---|:---|
 | [⬇️](#layout-editor) **Layout editor** | [⬇️](#smart-resize) **Smart resize** | [⬇️](#tile-with-keyboard) **Tile with Keyboard** | [⬇️](#edge-tiling) **Edge Tiling** |
-| [⬇️](#tiling-buttons) **Tiling Buttons** | [⬇️](#per-workspace-layout) **Per-workspace layout** | [⬇️](#auto-tiling) **Auto-tiling**
+| [⬇️](#tiling-buttons) **Tiling Buttons** | [⬇️](#per-workspace-layout) **Per-workspace layout** | [⬇️](#auto-tiling) **Auto-tiling** | [⬇️](#tiling-context-menu) **Tiling context menu** |
+| [⬇️](#smart-border-radius) **Smart border radius** 
 
 ### Tiling System ###
 When grabbing and moving a window, press <kbd>CTRL</kbd> key to show the tiling layout (you can choose another key from the preferences). When moving on a tile, it will highlight. Ungrab the window to place that window on the highlighted tile.
@@ -134,6 +135,31 @@ When a window is created, it is automatically moved to the best tile according t
 *Tiling Shell* supports importing and exporting its layouts to a JSON file. With this you can create your own custom layouts without the built-in graphical editor, or share your layouts with others! If you are interested into knowing more about the contents of the layout file check the official [documentation](./doc/json-internal-documentation.md).
 
 
+<p align="right"><b>Go to Usage</b> <a href="#usage">⬆️</a></p>
+
+### Tiling context menu ###
+
+Right-click on a window to use the auto-tile buttons and the snap assistant from there! These buttons allow you to tile to the leftmost or rightmost empty tile, based on your selected layout. The "Move to best tile" button suggests tiling to the nearest empty tile to the center of the screen.
+
+<p align="center"><img src="https://github.com/user-attachments/assets/d660779a-7549-4858-b149-59edad076483" width=520/></p>
+
+<p align="center">Check the demonstration video to see it in action!</p>
+
+[Screencast from 2024-07-13 18-21-57.webm](https://github.com/user-attachments/assets/8fd79faa-a476-4b55-b79c-6329e4b59519)
+
+> The original idea was to show the snap assistant when hovering the maximize button (as it is done on Windows 11). Unfortunately, GNOME doesn't let us handle the hovering of the maximize button or add another button near it...
+
+<p align="right"><b>Go to Usage</b> <a href="#usage">⬆️</a></p>
+
+### Smart border radius ###
+
+In GNOME, different windows may have different border radius. Drawing a border around the focused window is hard because it is not possible to know the window border radius. All the existing extensions just draw a border with a static value, making the UI less polished. Tiling Shell, **dynamically** computes the focused window border radius at runtime. Moreover, if you have an extension or anything else who customize the border radius, the focused window border radius adapts as well! This can be enabled/disabled from the extension's preferences too.
+
+<p align="center">
+<img src="https://github.com/user-attachments/assets/cfaca5f9-d9b2-4739-9426-1aebb5f33c29" width=304 />
+<img src="https://github.com/user-attachments/assets/8e68abff-66e5-4b85-a6ce-0bd2da7be166" width=332 />
+</p>
+
 <p align="right"><b>Go to Usage</b> <a href="#usage">⬆️</a></p>
 
 ## Installation