docs: add preamble to installation section

jshttp · Nov 26, 2016 · 4c0c77b · 4c0c77b
1 parent 83a6497
commit 4c0c77b
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -10,6 +10,10 @@ HTTP response freshness testing
 
 ## 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):
+
 ```
 $ npm install fresh
 ```