Update build-image.html.md

website/source/intro/getting-started/build-image.html.md

@@ -164,10 +164,10 @@ want to try to launch your AMI, get the ID from the Packer output.
 
 -> **Note:** If you see a `VPCResourceNotSpecified` error, Packer might not be
 able to determine the default VPC, which the `t2` instance types require. This
-can happen if you created you AWS account before `2013-12-04`.  You can either
+can happen if you created your AWS account before `2013-12-04`.  You can either
 change the `instance_type` to `m3.medium`, or specify a VPC. Please see
 http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/default-vpc.html for more
-information.
+information. Specify a `vpc_id` and you will need to specify a `subnet_id`.
 
 ## Managing the Image