docs: add release notes for 0.1.0 (#600)

CHANGELOG.md

@@ -1,10 +1,7 @@
 # Boundary CHANGELOG
-Canonical reference for changes, improvments, and bugfixes for Boundary.
 
-## 0.0.1 
+Canonical reference for changes, improvements, and bugfixes for Boundary.
 
-CHANGES: 
+## v0.1.0
 
-IMPROVEMENTS:
-
-BUG FIXES:
+v0.1.0 is the first release of Boundary. As a result there are no changes, improvements, or bugfixes from past versions.

website/content/docs/releases/release-notes/v0_1_0.mdx

@@ -6,6 +6,19 @@ description: |-
   Boundary release notes for v0.1.0
 ---
 
-# Boundary v0.1.0 Release notes
+# Boundary v0.1.0
 
-~> **Coming soon.** This page is not yet available.
+v0.1.0 is the first release of Boundary. As a result there are no changes, improvements, or bugfixes from past versions. To learn about what Boundary consists of, we highly recommend you start at the [Getting Started Page](/docs/getting-started).
+
+## Boundary v0.1.0 Highlights
+
+In this initial release, Boundary provides:
+
+- Password-based authentication
+- Authenticated and authorized [TCP-based sessions](docs/common-workflows/manage-sessions).
+- Identity and access management providing [role-based controls](/docs/common-workflows/manage-roles) for principals.
+- A user interface for administration of Boundary resources.
+- A [Terraform provider](https://github.com:hashicorp/terraform-provider-boundary) for managing Boundary resources.
+- A fully instrumented command line interface for managing Boundary and for establishing and managing sessions.
+- A fully instrumented [Boundary golang SDK](/docs/developing/sdk).
+- A log of Boundary sessions exposed through Boundary's administrator UI and postgres database.