Merge pull request #350 from randsu/master

Typo: strig => string

Author: iliakan

1-js/02-first-steps/12-while-for/6-repeat-until-correct/solution.md

@@ -10,6 +10,6 @@ do {
 The loop `do..while` repeats while both checks are truthy:
 
 1. The check for `num <= 100` -- that is, the entered value is still not greater than `100`.
-2. The check `&& num` is false when `num` is `null` or a empty strig. Then the `while` loop stops too.
+2. The check `&& num` is false when `num` is `null` or a empty string. Then the `while` loop stops too.
 
 P.S. If `num` is `null` then `num <= 100` is `true`, so without the 2nd check the loop wouldn't stop if the user clicks CANCEL. Both checks are required.