Add line to docs about valgrind, fix typo in dockerfile

Dockerfile

@@ -75,11 +75,13 @@ RUN make install
 # Run ATS testing suite.
 WORKDIR ../install
 ENV MPLBACKEND=agg
+
 # ATS currently does not allow us to run in parallel for regular linux machines
 # If it did, we would need some of the following commands
 #RUN export OMP_NUM_THREADS=1
 #RUN export MACHINE_TYPE="winParallel"
 #RUN ./spheral-ats --level 99 --mpiexe mpiexec --npMax $JCXX tests/integration.ats
+
 # Instead, we will just run it normally
-RUN ./spheral-ats --level 99 test/integration.ats
+RUN ./spheral-ats --level 99 tests/integration.ats
 # -----------------------------------------------------------------------------

docs/developer/dev/diagnostic_tools.rst

@@ -1,15 +1,24 @@
-Code Performance Diagnostics
-############################
+Code Debugging and Diagnostics
+##############################
 
-Spheral uses Caliper to preform code diagnostics, such as timing. To enable this functionality in the code, Spheral needs to be configured with ``ENABLE_TIMER=ON``. Otherwise, the timing regions are no-ops for improved preformance.
+Valgrind
+========
+
+We advise using Valgrind to check memory leaks when doing development on Spheral.
+When using Valgrind to check Spheral, be sure to use the provided suppression file
 ::
 
-  ./scripts/devtools/host-config-build.py <sys_type>-<spec>.cmake -DENABLE_TIMER=ON
+   valgrind --suppressions=./scripts/devtools/valgrind_python_suppression ./spheral
 
 
 Using Caliper
 =============
 
+Spheral uses Caliper to preform code diagnostics, such as timing. To enable this functionality in the code, Spheral needs to be configured with ``ENABLE_TIMER=ON``. Otherwise, the timing regions are no-ops for improved preformance.
+::
+
+  ./scripts/devtools/host-config-build.py <sys_type>-<spec>.cmake -DENABLE_TIMER=ON
+
 Caliper is configured and started through the ``cali::ConfigManager``.
 The ``cali::ConfigManager`` is wrapped in a ``TimerMgr`` singleton class, which has a python interface.
 
@@ -99,7 +108,7 @@ Adiak metadata can be added inside python code using the following function call
 .. _manual_caliper:
 
 Starting Caliper Manually
-========================
+=========================
 
 As mentioned above, the Caliper timing manager is normally configured and started in the ``commandLine()`` routine. However, Caliper can be directly configured and started through the python interface, if desired. This can be done by putting the following into the python file:
 ::