chore: clean up

Author: danielroe

README.md

@@ -90,6 +90,7 @@ You can follow the progress and future plans on [the Roadmap issue](https://gith
 VueFire requires the `firebase` package to be installed as well as `vuefire`:
 
 ```bash
+npm install firebase
 npx nuxi@latest module add vuefire
 ```
 

docs/guide/getting-started.md

@@ -6,6 +6,7 @@ Before using VueFire, make sure you have a Firebase account and a project setup
 
 In order to get started make sure to install the latest version of `vuefire` as well as `firebase`:
 ```bash
+npm i firebase
 npx nuxi@latest module add vuefire
 ```
 

docs/nuxt/getting-started.md

@@ -4,6 +4,7 @@ VueFire comes with an official Nuxt module that automatically handles most of th
 
 ## Installation
 ```bash
+npm install firebase
 npx nuxi@latest module add vuefire
 ```