diff --git a/docs/users_guide/framework_basics/obtaining_metadata.md b/docs/users_guide/framework_basics/obtaining_metadata.md
new file mode 100644
index 00000000..b43957b4
--- /dev/null
+++ b/docs/users_guide/framework_basics/obtaining_metadata.md
@@ -0,0 +1,10 @@
+# Obtaining Metadata
+
+## quantity spec
+
+## unit
+
+## reference
+
+## quantity
+
diff --git a/mkdocs.yml b/mkdocs.yml
index 20f737bf..106c9a7d 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -109,13 +109,14 @@ nav:
           - Interface Introduction: users_guide/framework_basics/interface_introduction.md
           - Systems of Quantities: users_guide/framework_basics/systems_of_quantities.md
           - Systems of Units: users_guide/framework_basics/systems_of_units.md
-          - Value Conversions: users_guide/framework_basics/value_conversions.md
+          - Faster Than Lightspeed Constants: users_guide/framework_basics/faster_than_lightspeed_constants.md
           - Simple and Typed Quantities: users_guide/framework_basics/simple_and_typed_quantities.md
+          - Value Conversions: users_guide/framework_basics/value_conversions.md
           - Quantity Arithmetics: users_guide/framework_basics/quantity_arithmetics.md
           - Quantities of Different Characters: users_guide/framework_basics/quantities_of_different_characters.md
           - Dimensionless Quantities: users_guide/framework_basics/dimensionless_quantities.md
           - The Affine Space: users_guide/framework_basics/the_affine_space.md
-          - Faster Than Lightspeed Constants: users_guide/framework_basics/faster_than_lightspeed_constants.md
+          - Obtaining Metadata: users_guide/framework_basics/obtaining_metadata.md
           - Text Output: users_guide/framework_basics/text_output.md
       - Defining Systems:
           - Introduction: users_guide/defining_systems/introduction.md