Added Get a HERE account doc section

Added "Get a HERE account" template to the "Get started" topic. This content aligns the DATA SDK for TypeScript dev guide with company standards.

Relates-To: TW-3078
Signed-off-by: Andrey Kashcheev <[email protected]>

Author: mark-thomas-dev

docs/GettingStartedGuide.md

@@ -3,6 +3,13 @@
 HERE Data SDK for TypeScript includes the core components to access HERE APIs from any web-based application.
 Read this topic to learn how to authenticate to and start working with the HERE platform using the HERE Data SDK for TypeScript.
 
+# Get a HERE account
+
+Obtain access to the HERE platform through your organization administrator's invitation or [contact us](https://www.here.com/contact?intref=dev_docum) to get started.
+
+* If your company has already established a HERE platform organization, contact your organization admin who can invite you to join the organization.
+* If your company hasn’t established a HERE platform organization yet, [contact us](https://www.here.com/contact?intref=dev_docum).
+
 ## Prerequisites
 
 - HERE platform account. Follow [this link](https://platform.here.com/portal/sign-up) to create an account.