Add example

src/sequencematcher.rs

@@ -74,6 +74,19 @@ impl<'a> Sequence for Vec<&'a str> {
     }
 }
 
+impl<'a> Sequence for [&'a str] {
+	fn len(&self) -> usize {
+    	self.len()
+    }
+
+    fn at_index(&self, index: usize) -> Option<&str> {
+    	if index < self.len() && index >= 0 {
+    		return Some(self[index])
+    	}
+    	None
+    }
+}
+
 pub struct SequenceMatcher<'a, T: 'a + ?Sized + Sequence>{
 	first_sequence: &'a T,
 	second_sequence: &'a T,