fix(docs): escaping (#3711)

Author: mfranzke

docs/migration/v0.6.x-to-v0.7.x.md

@@ -17,9 +17,8 @@ And icon font files have been moved from `functional/fonts/` one level up to `fo
 
 We provide a CLI tool to auto migrate your source code. Use this command in your repository:
 
-\```shell
-
+```shell
 npx @db-ui/migration --type=v006_v007 --src=./src
-\```
+```
 
 Please check the changes made in your codebase afterwards, as this is mainly a simple search & replace regarding the path.