Merge pull request bbatsov#102 from llasram/set-predicate-example

Set predicate `#{0}` -> `#{1}`

Author: bbatsov

README.md

@@ -866,10 +866,10 @@ hints for the pairwise grouping with comments or empty lines.
 
  ```Clojure
  ;; good
- (remove #{0} [0 1 2 3 4 5])
+ (remove #{1} [0 1 2 3 4 5])
 
  ;; bad
- (remove #(= % 0) [0 1 2 3 4 5])
+ (remove #(= % 1) [0 1 2 3 4 5])
 
  ;; good
  (count (filter #{\a \e \i \o \u} "mary had a little lamb"))