docs: add preamble to installation section

expressjs · Feb 8, 2017 · fe5c9a9 · fe5c9a9
1 parent b5a3e7f
commit fe5c9a9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -15,6 +15,10 @@ headers are written out to the client.
 
 ## Installation
 
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
 ```sh
 $ npm install response-time
 ```