fix(ci): only sync master branch

.drone.yml

@@ -95,6 +95,8 @@ steps:
     - failure
 
 trigger:
+  branch:
+  - master
   event:
   - push
   repo:

.editorconfig

@@ -0,0 +1,12 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = false