Update README.md

Author: iru

README.md

@@ -30,15 +30,13 @@ Your user **must** have following **roles** in your GCP credentials
 
 ### Use a Service Account
 
-You can also deploy the module using a Service Account (SA). In order to create a SA for the organization, you need to go
+Instead of using a user, you can also deploy the module using a Service Account (SA). In order to create a SA for the organization, you need to go
 to one of your organization projects and create a SA. 
 This SA must have been granted with _Organization Admin_ role. Additionally, you should allow your user to be able to use this SA.
 
-
-
 | SA role         | SA user permissions     | 
 |--------------|-----------|
-| ![Service Account Role](./resources/sa-role.jpeg) | ![Service Accouynt User](./resources/sa-user.jpeg)    | 
+| ![Service Account Role](https://raw.githubusercontent.com/sysdiglabs/terraform-google-secure-for-cloud/master/resources/sa-role.jpeg) | ![Service Accouynt User](https://raw.githubusercontent.com/sysdiglabs/terraform-google-secure-for-cloud/master/resources/sa-user.jpeg)    | 
 
 ### APIs
 Besides, the following GCP **APIs must be enabled** to deploy resources correctly for: