update documentation for jump plugin

Author: matlads

plugins/jump/README.md

@@ -2,10 +2,25 @@
 
 The jump plugin enables jump on bash.
 
-To use it, install
-[jump](https://github.com/gsamokovarov/jump?tab=readme-ov-file#installation)
-and add jump to the plugins array of your bashrc file:
+Jump integrates with your shell and learns about your navigational habits by keeping track of the directories you visit. It gives you the most visited directory for the shortest search term you type.
 
-```bash
-plugins=(... jump)
-```
+## Installation
+
+1. [Install jump](https://github.com/gsamokovarov/jump?tab=readme-ov-file#installation)
+
+2. Enable the plugin by adding it to the plugins array of your bashrc file:
+
+    ```bash
+    plugins=(... jump)
+    ```
+
+3. Enable the completions by adding it to the completions array of bashrc file:
+
+    ```bash
+    completions=(... jump)
+    ```
+
+## Usage
+
+See the [jump usage documentation](https://github.com/gsamokovarov/jump?tab=readme-ov-file#usage)
+for information on how to use jump