Clean up comments on editorxonfig.

Author: shyuep

.editorconfig

@@ -1,7 +1,7 @@
 # https://editorconfig.org/
 root = true
 
-# Unix-style newlines with a newline ending every file
+# Default settings for all files.
 [*]
 end_of_line = lf
 insert_final_newline = true
@@ -11,6 +11,6 @@ indent_size = 4
 trim_trailing_whitespace = true
 max_line_length = 120
 
-# Matches the exact files either package.json or .travis.yml
+# Set indent size for json and YAML files.
 [*.{json,yml,yaml}]
 indent_size = 2