docs: add xclip / wl-clipboard / xsel as optional dependencies

docs/configuration/yazi.md

@@ -136,7 +136,7 @@ This value determines the number of samples used during the training, range 10-2
 - ueberzug_scale (Float): Ueberzug image scaling ratio, `scale>1` for enlargement, `scale<1` for reduction. For example, `0.5` indicates a reduction to half.
 - ueberzug_offset (`[x, y, width, height]`): Ueberzug image offset, in cell units. For example, `[0.5, 0.5, -0.5, -0.5]` indicates that the image is offset by half a cell in both directions, and the width and height are reduced by half a cell.
 
-This is useful for solving [the bug of Ueberzug image size calculation](https://github.com/jstkdng/ueberzugpp/issues/122).
+This is useful for solving [a bug of Überzug++ image size calculation](https://github.com/jstkdng/ueberzugpp/issues/122).
 
 If your monitor has a `2.0` scale factor, and is running on Wayland under Hyprland, you may need to set `ueberzug_scale: 0.5`, and adjust the value of `ueberzug_offset` according to your case, to offset this issue.
 

docs/image-preview.md

@@ -85,7 +85,7 @@ That's it! you can now get Yazi's image preview working properly.
 
 ## Why can't I preview images via Überzug++?
 
-This may be an issue with Überzug++, please try running `ueberzug layer` directly in the terminal without Yazi, and paste:
+This may be an issue with Überzug++, please try running `ueberzugpp layer` directly in the terminal without Yazi, and paste:
 
 ```sh
 {"action":"add","identifier":"preview","max_height":0,"max_width":0,"path":"/your/image-path.jpg","x":0,"y":0}

docs/installation.md

@@ -20,6 +20,9 @@ Yazi can be _optionally_ extended with other command line tools to enable additi
 - [`rg`](https://github.com/BurntSushi/ripgrep) (for file content searching)
 - [`fzf`](https://github.com/junegunn/fzf) (for quick file subtree navigation)
 - [`zoxide`](https://github.com/ajeetdsouza/zoxide) (for historical directories navigation)
+- [`xclip`](https://github.com/astrand/xclip) / [`wl-clipboard`](https://github.com/bugaevc/wl-clipboard) / [`xsel`](https://github.com/kfish/xsel) (for system clipboard support)
+
+If the functions are not working properly, please try upgrading them to the latest version.
 
 ## Packaging status