Update changelog for #202 and #218 (#220)

Author: axelson

CHANGELOG.md

@@ -1,5 +1,12 @@
 ### Unreleased
 
+Improvements:
+- Add autocompletion of struct fields on a binding when we know for sure what type of struct it is. (thanks [Łukasz Samson](https://github.com/lukaszsamson)) [#202](https://github.com/elixir-lsp/elixir-ls/pull/202)
+  - For details see the [Code Completion section of the readme](https://github.com/elixir-lsp/elixir-ls/tree/a2a1f38bf0f47e074ec5d50636d669fae03a3d5e#code-completion)
+
+Bug Fixes:
+- Dialyzer: Get beam file for preloaded modules. (thanks [Łukasz Samson](https://github.com/lukaszsamson)) [#218](https://github.com/elixir-lsp/elixir-ls/pull/218)
+
 ### v0.3.3: 15 Apr 2020
 
 Meta:
@@ -18,7 +25,7 @@ Bug Fixes:
 - Workspace symbols handle module unloading during compilation without bringing down the server (thanks [Jason Axelson](https://github.com/axelson)) [#191](https://github.com/elixir-lsp/elixir-ls/pull/191)
 
 VSCode:
-- Change: Upgrade vscode-languageclient to 6.1.3 to support Language Server Protocol 3.15 (thanks [Łukasz Samson](https://github.com/lukaszsamson)) [#159](https://github.com/elixir-lsp/vscode-elixir-ls/pull/64)
+- Change: Upgrade vscode-languageclient to 6.1.3 to support Language Server Protocol 3.15 (thanks [Łukasz Samson](https://github.com/lukaszsamson)) [#64](https://github.com/elixir-lsp/vscode-elixir-ls/pull/64)
 
 ### v0.3.2: 28 Mar 2020