change links

external/git-clients/git-clients.md → external/contribute/git-clients/git-clients.md

 ---
 layout: page
-permalink: /external/git-clients/
+permalink: /external/contribute/git-clients/
 shortcut: contribute:git-clients
 redirect_from:
   - /cards/contribute:git-clients

external/contribute/write-markdown/write-markdown.md

 ---
 layout: page
-permalink: /internal/contribute/write-markdown/
+permalink: /external/contribute/write-markdown/
 shortcut: contribute:write-markdown
 redirect_from:
   - /cards/contribute:write-markdown
-  - /internal/cards/contribute:write-markdown
+  - /external/cards/contribute:write-markdown
 ---
 # How to write in markdown