Support std::string_view when compiled under C++17
diff --git a/docs/advanced/cast/overview.rst b/docs/advanced/cast/overview.rst
index 49781dc..2ac7d30 100644
--- a/docs/advanced/cast/overview.rst
+++ b/docs/advanced/cast/overview.rst
@@ -116,6 +116,9 @@
+------------------------------------+---------------------------+-------------------------------+
| ``std::wstring`` | STL dynamic wide string | :file:`pybind11/pybind11.h` |
+------------------------------------+---------------------------+-------------------------------+
+| ``std::string_view``, | STL C++17 string views | :file:`pybind11/pybind11.h` |
+| ``std::u16string_view``, etc. | | |
++------------------------------------+---------------------------+-------------------------------+
| ``std::pair<T1, T2>`` | Pair of two custom types | :file:`pybind11/pybind11.h` |
+------------------------------------+---------------------------+-------------------------------+
| ``std::tuple<...>`` | Arbitrary tuple of types | :file:`pybind11/pybind11.h` |