Merge pull request #21 from MaximSmolskiy/fix-function-description-in-README.md

Fix function description in README.md

Author: 5cript

README.md

@@ -200,7 +200,7 @@ Finds the first interval in the interval tree that overlaps the given interval.
 
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 ### (const)iterator overlap_find_all(interval_type const& ival, OnFindFunctionT const& on_find, bool exclusive)
-Finds the first interval in the interval tree that overlaps the given interval.
+Finds all intervals in the interval tree that overlaps the given interval.
 #### Parameters
 * `ival` The interval to find an overlap for.
 * `on_find` A function of type bool(iterator) that is called when an interval was found.