Update Changelog

Author: lumaxis

CHANGELOG.md

@@ -11,6 +11,7 @@
   - Add `markdownCodeBlock.includeLanguageIdentifier` configuration option for Markdown block behavior. **This replaces `snippet-copy.addLanguageIdentifierToMarkdownBlock`**. 
   - Allows to set whether Markdown blocks should always include the [language identifier](https://help.github.com/en/github/writing-on-github/creating-and-highlighting-code-blocks) which allows for syntax highlighting in some tools (for example github.com) but is not compatible with others (for example Slack).  
   - The default is "`prompt`" which makes the extension always prompt when using the "Copy Snippet as Markdown Code Block" command.
+- Add configuration setting to convert tabs to spaces when copying snippet. Additionally allows to configure the tab size for the conversion. 
 
 ## [0.2.3]