Move spaces around operators guideline back to general

Author: slickepinne

general/README.md

@@ -23,6 +23,7 @@ violations.
 - Delete trailing spaces.
 - Don't misspell.
 - Use [Unix-style line endings] (`\n`).
+- Use spaces around operators, except for unary operators, such as `!`.
 
 [unix-style line endings]: http://unix.stackexchange.com/questions/23903/should-i-end-my-text-script-files-with-a-newline
 

ruby/README.md

@@ -41,7 +41,6 @@
 - Prefer `private` when indicating scope. Use `protected` only with comparison
   methods like `def ==(other)`, `def <(other)`, and `def >(other)`.
 - Use empty lines around multi-line blocks.
-- Use spaces around operators, except for unary operators, such as `!`.
 
 [standard]: https://github.com/testdouble/standard
 [#63]: https://github.com/thoughtbot/guides/pull/63