Add dua-cli plugin

README.md

@@ -54,7 +54,7 @@ Table of content
   - [Node Types](https://arijitbasu.in/xplr/en/node_types.html)
   - [Style](https://arijitbasu.in/xplr/en/style.html)
 - [Default Key Bindings](https://arijitbasu.in/xplr/en/default-key-bindings.html)
-- [Plugin](https://arijitbasu.in/xplr/en/default-key-bindings.html)
+- [Plugin](https://arijitbasu.in/xplr/en/plugin.html)
   - [Installing Plugins](https://arijitbasu.in/xplr/en/installing-plugins.html)
   - [Writing Plugins](https://arijitbasu.in/xplr/en/writing-plugins.html)
   - [Awesome Plugins](https://arijitbasu.in/xplr/en/awesome-plugins.html)

docs/en/src/awesome-plugins.md

@@ -18,4 +18,6 @@ Theme
 Integration
 -----------
 
-foo
+- [dua-cli.xplr](https://github.com/sayanarijit/dua-cli.xplr)
+  Get the disk usage using [dua-cli](https://github.com/Byron/dua-cli) with
+  selection support.

docs/en/src/writing-plugins.md

@@ -52,7 +52,7 @@ return { setup = setup }
 Publishing
 ----------
 
-When publishing plugins to GitHub or other repositories, it's a best practice
+When publishing plugins on GitHub or other repositories, it's a best practice
 to append `.xplr` to the name to make them distinguishable. Similar to the
 `*.nvim` naming convention for [Neovim](https://neovim.io) plugins.