Fix a coupe of typos (#1007)

diff --git a/include/json/value.h b/include/json/value.h
index a478848..e1340d6 100644
--- a/include/json/value.h
+++ b/include/json/value.h
@@ -684,7 +684,7 @@
  * - ".name1.name2.name3"
  * - ".[0][1][2].name1[3]"
  * - ".%" => member name is provided as parameter
- * - ".[%]" => index is provied as parameter
+ * - ".[%]" => index is provided as parameter
  */
 class JSON_API Path {
 public: