digitalocean: update index docs for do_token var

Updates the docs and clarifies the usage of `do_token` variable. I was experiencing an issue mentioned here hashicorp#124 and so adding more docs should be helpful.
clearcare · Nov 12, 2015 · 1ae3f6b · 1ae3f6b
1 parent 51ef7a4
commit 1ae3f6b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/website/source/docs/providers/do/index.html.markdown b/website/source/docs/providers/do/index.html.markdown
@@ -17,6 +17,9 @@ Use the navigation to the left to read about the available resources.
 ## Example Usage
 
 ```
+# Set the variable value in *.tfvars file or using -var="do_token=..." CLI option
+variable "do_token" {}
+
 # Configure the DigitalOcean Provider
 provider "digitalocean" {
     token = "${var.do_token}"