Update CHANGELOG for v2.3.0-preview.3

Author: andyleejordan

CHANGELOG.md

@@ -1,5 +1,35 @@
 # PowerShell Editor Services Release History
 
+## v2.3.0-preview.3
+### Friday, February 19, 2021
+
+- Fix publish step.
+- Merge pull request #1408 from PowerShell/andschwa/esrp.
+- Fix issues caught by PoliCheck.
+- Exclude .git folder from PoliCheck.
+- Point PoliCheck to source subfolder.
+- Replace compliance tasks with template.
+- Delete deprecated signing.xml.
+- Use ADO tasks instead of pwsh inline scripts.
+- Start simplifying release build.
+- Replace PackageES with ESRP template.
+- Add self as maintainer to readme.
+- Set DFS to false in package build.
+- [PowerShellEditorServices #1398](https://github.com/PowerShell/PowerShellEditorServices/pull/1398) -
+  Refactor e2e tests.
+- [PowerShellEditorServices #1381](https://github.com/PowerShell/PowerShellEditorServices/pull/1381) -
+  Hook up Telemetry LSP event and add telemetry event when users opt-out/in to features.
+- [PowerShellEditorServices #1397](https://github.com/PowerShell/PowerShellEditorServices/pull/1397) -
+  More compliant NuGet.config.
+- [vscode-powershell #3071](https://github.com/PowerShell/PowerShellEditorServices/pull/1394) -
+  Fix #1393: Always use local help to return cmdlet help text. (Thanks @deadlydog!)
+- [PowerShellEditorServices #1376](https://github.com/PowerShell/PowerShellEditorServices/pull/1376) -
+  Move to Omnisharp lib 0.18.x.
+- 🛫 🐛 [vscode-powershell #2965](https://github.com/PowerShell/PowerShellEditorServices/pull/1363) -
+  Fix error when started in low .NET versions.
+- [PowerShellEditorServices #1364](https://github.com/PowerShell/PowerShellEditorServices/pull/1364) -
+  Typos in README.md. (Thanks @robotboyfriend!)
+
 ## v2.3.0-preview.2
 ### Wednesday, September 16, 2020