Added Fixed section en CHANGELOG.

Author: michelcaradec

CHANGELOG.md

@@ -18,11 +18,14 @@ Here are a few common issues.
 ### Changed
 
 - Update to [TypeScript 3.7](https://devblogs.microsoft.com/typescript/announcing-typescript-3-7/).
-- There was an error when calling commands `testString` and `showVersion`.
 - Code provider:
   - `px` HTML expression detection.
   - Improvement in camel case variable detection.
 
+### Fixed
+
+- There was an error when calling commands `testString` and `showVersion`.
+
 ## [0.1.0] - 2019-11-05
 
 ### Added