#242: description update

Author: vetalapo

c-sharp/Problems/arrays-and-hashing/ValidAnagram.cs

@@ -15,10 +15,12 @@
  *   Output: false
  *
  * Constraints:
- *   • 1 <= s.length, t.length <= 5 * 104
+ *   • 1 <= s.length, t.length <= 5 * 10^4
  *   • s and t consist of lowercase English letters.
  *
- * Follow up: What if the inputs contain Unicode characters? How would you adapt your solution to such a case?
+ * Follow up:
+ *   What if the inputs contain Unicode characters?
+ *   How would you adapt your solution to such a case?
  **
  * https://leetcode.com/problems/valid-anagram/
 ***/