Update docs

EXTENSIONS.md

@@ -17,5 +17,6 @@ RustCast.
      extensions, not just in rustcast, but in all projects.
 
 1. Using WASM:
-   - The way Zed does their extension support. Maybe I could also use that? 
-   - Their article can be found [here](https://zed.dev/blog/zed-decoded-extensions)
+   - The way Zed does their extension support. Maybe I could also use that?
+   - Their article can be found
+     [here](https://zed.dev/blog/zed-decoded-extensions)

docs/config.toml

@@ -29,14 +29,10 @@ blur = false
 show_icons = true
 show_scroll_bar = true
 
+# searching for `echo abcd > file.txt` will run `echo abcd > file.txt` as the shell command
 [[shells]]
-command = "echo $var1 > file.txt" # This will start with $var1
-icon_path = "" # optional
+command = "echo "
+# icon_path is optional
 alias = "Variables 1" # the name that will be displayed in the results
-alias_lc = "var" # the name used to search for it
+alias_lc = "var test" # the name used to search for it
 
-[[shells]]
-command = "echo $var2 > file.txt" # This will start with $var2 as there is 1 space in the alias_lc
-icon_path = "" # optional
-alias = "Variables 2" # the name that will be displayed in the results
-alias_lc = "var again" # the name used to search for it