doc: Upgrade Guide 1.37.0 (#3431)

* moving to old guider if more than 1yr

* guide 1.37.0

* Revert "moving to old guider if more than 1yr"

This reverts commit 8e2b7a6.

Author: lantoli

docs/guides/1.37.0-upgrade-guide.md

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+---
+page_title: "Upgrade Guide 1.37.0"
+---
+
+# MongoDB Atlas Provider 1.37.0: Upgrade and Information Guide
+
+The Terraform MongoDB Atlas Provider version 1.37.0 introduces the following new features and fixes:
+
+## New Resources, Data Sources, and Features
+
+- You can now use `cluster_project_id` in the `mongodbatlas_stream_connection` resource to allow connections to clusters in other projects within an organization. To learn more, see the [mongodbatlas_stream_connection](https://registry.terraform.io/providers/mongodb/mongodbatlas/latest/docs/resources/stream_connection) resource documentation.
+
+## Helpful Links
+
+* [Report bugs](https://github.com/mongodb/terraform-provider-mongodbatlas/issues)
+* [Request Features](https://feedback.mongodb.com/forums/924145-atlas?category_id=370723)
+* [Contact Support](https://docs.atlas.mongodb.com/support/) covered by MongoDB Atlas support plans, Developer and above.