Updates changelog for v2 release and adds missing releases

CHANGELOG.md

@@ -4,11 +4,60 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+### 2.0.0
+
+**Released**: 2021.03.03
+
+**Commit Delta**: [Change from 1.0.0 release](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/compare/1.0.0...2.0.0)
+
+**Summary**:
+
+*   Replaces python accepter with new resource, `aws_securityhub_invite_accepter`.
+    See [PR #60](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/pull/60).
+*   Moves cross-account workflow into separate module. This eliminates the extra
+    "provider" when *not* using the cross-account workflow. It also streamlines
+    the inputs for each use case. See [PR #60](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/pull/60).
+*   Renames the `master` provider to `administrator` for the cross-account workflow.
+    See [PR #60](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/pull/60).
+
+### 1.0.0
+
+**Released**: 2020.10.07
+
+**Commit Delta**: [Change from 0.0.3 release](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/compare/0.0.3...1.0.0)
+
+**Summary**:
+
+*   Splits resources into submodules to support separate master/member workflows.
+    See [PR #44](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/pull/44).
+
+### 0.0.3
+
+**Released**: 2020.05.14
+
+**Commit Delta**: [Change from 0.0.2 release](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/compare/0.0.2...0.0.3)
+
+**Summary**:
+
+*   Avoids error, "Cannot include a null value in a string template".
+    See [PR #16](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/pull/16).
+
+### 0.0.2
+
+**Released**: 2020.05.13
+
+**Commit Delta**: [Change from 0.0.1 release](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/compare/0.0.1...0.0.2)
+
+**Summary**:
+
+*   Passes profile and region through the refreshable credential properly.
+    See [PR #15](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/pull/15).
+
 ### 0.0.1
 
 **Released**: 2020.05.08
 
-**Commit Delta**: [Change from 1.0.4 release](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/compare/0.0.0...0.0.1)
+**Commit Delta**: [Change from 0.0.0 release](https://github.com/plus3it/terraform-aws-tardigrade-security-hub/compare/0.0.0...0.0.1)
 
 **Summary**: