[Doc] Add more links between tutorials and examples

Resolves Cantera/cantera-website#103

doc/sphinx/examples/index.md

@@ -5,6 +5,13 @@ particular programming language, select the corresponding category below. Or, to
 all examples covering a particular topic, regardless of programming language, select
 from the {ref}`list of example tags <tagoverview>`.
 
+```{seealso}
+If you're just getting started with Cantera, see our [](/userguide/python-tutorial) for
+an introduction to the Cantera Python interface, or the
+[C++ Tutorial](/userguide/cxx-tutorial) for some guidance on using Cantera's C++
+interface.
+```
+
 ## Python Examples
 
 ````{grid} 2 2 2 3

doc/sphinx/userguide/python-tutorial.md

@@ -440,4 +440,15 @@ Or about 16% of the total heat release rate.
 Congratulations! You have finished the Cantera Python tutorial. You should now be ready
 to begin using Cantera on your own. Please see additional sections of the [Cantera User
 Guide](/userguide/index) for assistance with intermediate and advanced Cantera
-functionality. Good luck!
+functionality. You can also take a look at our [Example Gallery](/examples/python/index)
+for ideas on how you can use Cantera. Here are a few examples that may be of particular
+interest:
+
+* [](/userguide/flame-temperature)
+* [](/userguide/heating-value)
+* [](/examples/python/thermo/equations_of_state)
+* [](/examples/python/kinetics/lithium_ion_battery)
+* [](/examples/python/reactors/continuous_reactor)
+* [](/examples/python/reactors/NonIdealShockTube)
+* [](/examples/python/onedim/flamespeed_sensitivity)
+* [](/examples/python/onedim/premixed_counterflow_twin_flame)

samples/cxx/README.rst

@@ -1,2 +1,7 @@
 C++ Examples
 ============
+
+.. seealso::
+
+    For some guidance getting started with the Cantera C++ interface, please see the
+    :doc:`C++ Tutorial </userguide/cxx-tutorial>`.

samples/python/README.rst

@@ -5,3 +5,6 @@ Python Examples
 
     To find examples covering a specific topic, see the
     :ref:`index of example tags <tagoverview>`.
+
+    If you're just getting started with Cantera, see our
+    :doc:`/userguide/python-tutorial` for an introduction to the Cantera Python interface.