Merge upstream changes from Marlin 2.1.2.2

.editorconfig

@@ -1,19 +1,29 @@
 # editorconfig.org
 root = true
 
+[*]
+trim_trailing_whitespace = true
+insert_final_newline = true
+
 [{*.patch,syntax_test_*}]
 trim_trailing_whitespace = false
 
+[{*.c,*.cpp,*.h,*.ino,*.py,Makefile}]
+end_of_line = lf
+
 [{*.c,*.cpp,*.h,*.ino}]
 charset = utf-8
-
-[{*.c,*.cpp,*.h,*.ino,Makefile}]
-trim_trailing_whitespace = true
-insert_final_newline = true
-end_of_line = lf
 indent_style = space
 indent_size = 2
 
+[{Makefile}]
+indent_style = tab
+indent_size = 2
+
+[*.md]
+# Two spaces at the end of the line means newline in Markdown
+trim_trailing_whitespace = false
+
 [{*.py}]
 indent_style = space
 indent_size = 4