Update examples with some comments

examples/examples.mc

 (repeat 5 (log 10))
 (log scopelol)
 (repeat scopelol (log 10))
-(if (eq 2 scopelol) (log "2 == scopelol") | (log "2 != scopelol"))
+(if (eq 2 scopelol) (log "2 == scopelol") | (log "2 != scopelol")) ; Using a bar is similar to 'else' in a normal language
 (log (str::concat "Hello " "World!"))

examples/fizzbuzz.mc

 (include str maths)
+
+;
+; def: fizzbuzz(1)
+;
+; Takes an argument and prints the numbers up to and including the argument
+; replacing numbers that are divisible by 3, with Fizz, numbers
+; divisible by 5 with Buzz, and numbers that are divisible by both,
+; with FizzBuzz
+;
 (def fizzbuzz
   (assign i 1)
   (repeat $1
     (assign result "")
-    (if (eq (maths::modulo i 3) 0) (assign result (str::concat result "Fizz")))
+    (if (eq (maths::modulo i 3) 0) (assign result "Fizz"))
     (if (eq (maths::modulo i 5) 0) (assign result (str::concat result "Buzz")))
     (if (eq result "") (assign result i))
     (log result)