add note about supported npm version

closes #15
ivanvanderbyl · Nov 8, 2016 · b9d7f0a · b9d7f0a
1 parent 378dc85
commit b9d7f0a
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -2,6 +2,13 @@
 
 Ember shim for loading `d3@4.x.x`. To install:
 
+First, make sure you're running on npm > 2, by running `npm -v`.
+If it's not the case then run
+```
+npm i -g npm@3
+```
+
+Then
 ```
 ember install ember-d3
 ```