Added workflow to preview the github release notes, and added the changelog.md to be picked up by crt workflow

Author: harshitchaudhary94

content/terraform-enterprise/1.0.x/docs/enterprise/releases/1.0.x/index.mdx

@@ -68,9 +68,8 @@ Last required release: [v202406-1 (776)](/terraform/enterprise/releases/2024/v20
 
 Flexible Deployment Options `terraform-enterprise` container digest: amd64/linux `sha256:edc06293b395e5beb3dfbbda4e89341334ab184c5895b81cf31c074dadc43ff7`, arm64/linux `sha256:7d7dfa2b283f252b8a65b1689a49db2b3a0b81fcaefd11a560a93baf8ad6041f`
 
-## Deprecations
-
 ## Bug Fixes
+1. The Terraform Enterprise API now returns the value of the x-tfe-version header in its response. This header indicates the current version of Terraform Enterprise.
 
 ## Security