chore(editorconfig): all JSON and YAML should be 2-space indent

Author: evocateur

.editorconfig

@@ -9,3 +9,6 @@ insert_final_newline = true
 end_of_line = lf
 # editorconfig-tools is unable to ignore longs strings or urls
 max_line_length = null
+
+[*.{json,yaml,yml}]
+indent_size = 2