Add Editor / Whitespaces section

content/editor.md

@@ -13,6 +13,13 @@ Configure your editor to use Soft Tabs (replace tabs with spaces) or Spaces.
 The most part of IDE and editors support this feature.
 
 
+## Whitespaces
+
+Lines MUST have no trailing whitespace at the end.
+
+You SHOULD use blank lines to group statements. It's RECOMMENDED to use only one empty line.
+
+
 ## Maximum Line Length
 
 The target line length SHOULD be 80 characters.
@@ -25,8 +32,3 @@ Developers SHOULD strive keep each line of their code under 80 characters where
 Line termination follows the Unix text file convention. Lines MUST end with a single linefeed (LF) character. Linefeed characters are represented as ordinal 10, or hexadecimal 0x0A.
 
 Note: Do not use carriage returns (CR) as is the convention in Apple OS's (0x0D) or the carriage return - linefeed combination (CRLF) as is standard for the Windows OS (0x0D, 0x0A).
-
-
-## Whitespaces
-
- #TODO