Add tutorial page for embedding the interpreter
diff --git a/docs/advanced/pycpp/utilities.rst b/docs/advanced/pycpp/utilities.rst
index e3d9c6c..171a885 100644
--- a/docs/advanced/pycpp/utilities.rst
+++ b/docs/advanced/pycpp/utilities.rst
@@ -21,6 +21,8 @@
     auto args = py::make_tuple("unpacked", true);
     py::print("->", *args, "end"_a="<-"); // -> unpacked True <-
 
+.. _eval:
+
 Evaluating Python expressions from strings and files
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