Update README.md

Author: AlexBolot

README.md

@@ -45,6 +45,8 @@ public void assertStrictlyPositive (double value)
 
 <h3>3. FormatUtils</h3>
 
+This class contains methods used to format test or print with special format.
+
 <b>Exemple :</b>
 ```
 public String toFirstUpperCase (String string)
@@ -96,4 +98,4 @@ public T max (T[] array)        // with ‹T extends Comparator‹T››
 public T max (T[] array, Comparator‹T› comparator)
 public T max (Collection‹T› collection) // with ‹T extends Comparator‹T››
 public T max (Collection‹T› collection, Comparator‹T› comparator)
-```
+```