Update Crowdin configuration file

crowdin.yml

@@ -0,0 +1,9 @@
+files:
+  - source: /docs/*/*.md
+    ignore:
+      - /docs/*/*.zh-CN.md
+      - /docs/*/*.en-US.md
+    translation: /%original_path%/%file_name%.%language%.md
+    languages_mapping:
+      language:
+        en: en-US