[racket/en] fix indentation and spacing (#4251)

* Fix indentation and spacing

* One more fix

racket.html.markdown

@@ -413,7 +413,7 @@ m ; => '#hash((b . 2) (a . 1) (c . 3))  <-- no `d'
 (loop 5) ; => i=5, i=6, ...
 
 ;; Similarly, with a named let
-(let loop ((i 0))
+(let loop ([i 0])
   (when (< i 10)
     (printf "i=~a\n" i)
     (loop (add1 i)))) ; => i=0, i=1, ...
@@ -447,11 +447,13 @@ m ; => '#hash((b . 2) (a . 1) (c . 3))  <-- no `d'
 ;;; More Complex Iterations
 
 ;; Parallel scan of multiple sequences (stops on shortest)
-(for ([i 10] [j '(x y z)]) (printf "~a:~a\n" i j))
+(for ([i 10] [j '(x y z)]) 
+  (printf "~a:~a\n" i j))
 ; => 0:x 1:y 2:z
 
 ;; Nested loops
-(for* ([i 2] [j '(x y z)]) (printf "~a:~a\n" i j))
+(for* ([i 2] [j '(x y z)]) 
+  (printf "~a:~a\n" i j))
 ; => 0:x, 0:y, 0:z, 1:x, 1:y, 1:z
 
 ;; Conditions
@@ -663,8 +665,7 @@ vec ; => #(1 2 3 4)
 
   (define amount 0)
   (define (deposit a) (set! amount (+ amount a)))
-  (define (balance) amount)
-  )
+  (define (balance) amount))
 
 (require 'bank-account)
 (deposit 5)