Update README.md

Author: thiagogq

README.md

@@ -77,10 +77,9 @@ The best way to use LibreBlog is to install it as a browser extension. That way,
 
 **Installation steps**:
 
-1. Clone this repository.
-2. Inside the repository folder, run: `npm install`.
-3. In the previous step, the necessary scripts will be copied to the *dependencies* folder.
-4. Load the unpacked extension ([See how](https://developer.chrome.com/docs/extensions/get-started/tutorial/hello-world#load-unpacked)).
+1. Clone/Download this repository.
+2. (Optional) Inside the repository folder, run: `npm install`. Only run this if you want to install or update dependencies locally.
+3. Load the unpacked extension ([See how](https://developer.chrome.com/docs/extensions/get-started/tutorial/hello-world#load-unpacked)).
 
 ## How to easily test your website (and render LaTeX articles)