diff --git a/docs/source/usersguide/install.rst b/docs/source/usersguide/install.rst
index 3090ae69e5..7961b3e38b 100644
--- a/docs/source/usersguide/install.rst
+++ b/docs/source/usersguide/install.rst
@@ -274,7 +274,9 @@ Prerequisites
 .. _MPICH: https://www.mpich.org
 .. _HDF5: https://www.hdfgroup.org/solutions/hdf5/
 .. _DAGMC: https://svalinn.github.io/DAGMC/index.html
+.. _MOAB: https://bitbucket.org/fathomteam/moab
 .. _libMesh: https://libmesh.github.io/
+.. _libpng: http://www.libpng.org/pub/png/libpng.html
 
 Obtaining the Source
 --------------------
diff --git a/openmc/model/model.py b/openmc/model/model.py
index cf082407c0..072c5ae73b 100644
--- a/openmc/model/model.py
+++ b/openmc/model/model.py
@@ -781,7 +781,7 @@ class Model:
         The rotation is only applied to cells filled with a universe.
 
         .. note:: If applying this change to a name that is not unique, then
-        the change will be applied to all objects of that name.
+                  the change will be applied to all objects of that name.
 
         .. versionadded:: 0.13.0
 
@@ -803,7 +803,7 @@ class Model:
         The translation is only applied to cells filled with a universe.
 
         .. note:: If applying this change to a name that is not unique, then
-        the change will be applied to all objects of that name.
+                  the change will be applied to all objects of that name.
 
         .. versionadded:: 0.13.0
 
@@ -825,7 +825,7 @@ class Model:
         """Update the density of a given set of materials to a new value
 
         .. note:: If applying this change to a name that is not unique, then
-        the change will be applied to all objects of that name.
+                  the change will be applied to all objects of that name.
 
         .. versionadded:: 0.13.0
 
@@ -848,7 +848,7 @@ class Model:
         """Update the temperature of a set of cells to the given value
 
         .. note:: If applying this change to a name that is not unique, then
-        the change will be applied to all objects of that name.
+                  the change will be applied to all objects of that name.
 
         .. versionadded:: 0.13.0
 
@@ -869,7 +869,7 @@ class Model:
         """Update the volume of a set of materials to the given value
 
         .. note:: If applying this change to a name that is not unique, then
-        the change will be applied to all objects of that name.
+                  the change will be applied to all objects of that name.
 
         .. versionadded:: 0.13.0