Update installation guide

docs/content/installation.md

@@ -1,20 +1,44 @@
 # Installation
 
-The Galaxy Charts environment is available as Vue3 Library and can be installed through the node package manager.
+To get started, we recommend cloning the [Galaxy Visualizations repository](https://github.com/galaxyproject/galaxy-visualizations). While cloning this repository isn't strictly necessary to add new visualizations to Galaxy, it's best practice to keep a central collection of all visualizations here for easy access and management.
 
-## Install Galaxy Charts
+Run the following command to clone the Galaxy Visualizations repsoitory:
+```md
+git clone https://github.com/galaxyproject/galaxy-visualizations
+```
 
-<a href="https://www.npmjs.com/package/galaxy-charts">Click here to visit npm and access the package details</a>.
+Once cloned, navigate to the packages subdirectory. This is where we will add a new visualization.
+```md
+cd galaxy-visualizations/packages
+```
+
+Ensure the degit tool is installed.
 
 ```md
-npm install galaxy-charts
+npm install -g degit
 ```
 
+Then use it to copy the `galaxy-charts-starter` kit, specifying the desired name for your visualization or plugin.
 
-**Alternatively, you may clone the Galaxy Charts Starter-Kit**
+```md
+degit https://github.com/guerler/galaxy-charts-starter YOUR_PLUGIN_NAME
+```
 
-The Galaxy Charts Starter-Kit simplifies getting started with your visualization plugin by providing a pre-configured Vite/Vue3 build environment and placeholder files.
+Navigate to your newly created plugin directory, and run:
 
 ```md
-git clone https://github.com/guerler/galaxy-charts-starter
+cd YOUR_PLUGIN_NAME
+npm install
+npm run dev
+```
+
+Your development environment is now set up and ready for customization!
+
+## Add to Existing Vue Application
+
+The Galaxy Charts environment is available as Vue3 Library and can be installed through the node package manager.
+<a href="https://www.npmjs.com/package/galaxy-charts">Click here to visit npm and access the package details</a>.
+
+```md
+npm install galaxy-charts
 ```