conjunctions don't have to be capitalized

docs/styleguide.md

@@ -6,9 +6,10 @@ These are the guidelines for writing Electron documentation.
 
 * Each page must have a single `#`-level title at the top.
 * Chapters in the same page must have `##`-level titles.
-* Sub-chapters need to increase the number of `#` in the title according to their
-  nesting depth.
-* All words in the page's title must be capitalized.
+* Sub-chapters need to increase the number of `#` in the title according to
+  their nesting depth.
+* All words in the page's title must be capitalized, except for conjunctions
+  like "of" and "and" .
 * Only the first word of a chapter title must be capitalized.
 
 Using `Quick Start` as example: