Change class filenames to Ucfirst
diff --git a/user_guide_src/source/general/libraries.rst b/user_guide_src/source/general/libraries.rst
index 6e1c8b6..9bbda51 100644
--- a/user_guide_src/source/general/libraries.rst
+++ b/user_guide_src/source/general/libraries.rst
@@ -29,4 +29,4 @@
===========================
Please read the section of the user guide that discusses how to
-:doc:`create your own libraries <creating_libraries>`.
+:doc:`create your own libraries <creating_libraries>`.
\ No newline at end of file