diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..927046c
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,4 @@
+Please read the contributor guide here:
+
+https://wrf-python.readthedocs.io/en/latest/contrib.html
+
diff --git a/doc/source/_templates/product_table.txt b/doc/source/_templates/product_table.txt
index 2ecc5f1..2fad6fb 100644
--- a/doc/source/_templates/product_table.txt
+++ b/doc/source/_templates/product_table.txt
@@ -83,6 +83,8 @@
 |                    |                                                               |                             |                                                                                                                                                         |
 |                    |                                                               | atm                         |                                                                                                                                                         |
 +--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
+| T2                 | 2m Temperature                                                | K                           |                                                                                                                                                         |
++--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
 | ter                | Model Terrain Height                                          | m                           | **units** (str) : Set to desired units. Default is *'m'*.                                                                                               |
 |                    |                                                               |                             |                                                                                                                                                         |
 |                    |                                                               | km                          |                                                                                                                                                         |       
diff --git a/doc/source/plot.rst b/doc/source/plot.rst
index 6c572e0..fb69a7f 100644
--- a/doc/source/plot.rst
+++ b/doc/source/plot.rst
@@ -7,6 +7,8 @@ make use of xarray's builtin plotting functions, since additional work is most
 likely needed to extend xarray in order to work correctly.  This is planned 
 for a future release.
 
+A subset of the wrfout file used in these examples can be downloaded `here <https://doi.org/10.5065/yd8c-hm41>`_.
+
 Matplotlib With Cartopy
 -------------------------
 
@@ -819,4 +821,3 @@ terrain filled.
     ax_cross.set_title("Cross-Section of Reflectivity (dBZ)", {"fontsize" : 14})
     
     pyplot.show()
-
diff --git a/src/wrf/interp.py b/src/wrf/interp.py
index 8e7fc57..e68029b 100755
--- a/src/wrf/interp.py
+++ b/src/wrf/interp.py
@@ -90,10 +90,10 @@ def interplevel(field3d, vert, desiredlev, missing=default_fill(np.float64),
             wrfin = Dataset("wrfout_d02_2010-06-13_21:00:00")
 
             rh = getvar(wrfin, "rh")
-            z = getvar(wrfin, "z")
+            height = getvar(wrfin, "height_agl")
             pblh = getvar(wrfin, "PBLH")
 
-            rh_pblh = interplevel(rh, z, pblh)
+            rh_pblh = interplevel(rh, height, pblh)
 
 
     """