Remove unnecessary meta data on markdown files (#12)

Reviewed-on: https://gitea.com/gitea/docs/pulls/12

docs/administration/cmd-embedded.md

@@ -1,18 +1,9 @@
 ---
 date: "2020-01-25T21:00:00-03:00"
-title: "Embedded data extraction tool"
 slug: "cmd-embedded"
 sidebar_position: 20
-toc: false
-draft: false
 aliases:
   - /en-us/cmd-embedded
-menu:
-  sidebar:
-    parent: "administration"
-    name: "Embedded data extraction tool"
-    sidebar_position: 20
-    identifier: "cmd-embedded"
 ---
 
 # Embedded data extraction tool