Added an "examples" section in the documentation, pointing to pytest-patterns

Author: Sylvain MARIE

docs/examples.md

@@ -0,0 +1,5 @@
+# Examples
+
+Our examples are hosted in a separate repository so that they can be updated independently.
+
+ * [data science benchmark](https://smarie.github.io/pytest-patterns/examples/data_science_benchmark/) demonstrates how `pytest` can be used as a benchmarking engine thanks to `pytest-cases` and `pytest-harvest`, to compare the performances of several regression algorithms on several datasets and produce various reports (plots, csv table...).

docs/imgs/0_bench_plots_example.png

@@ -17,7 +17,9 @@ Did you ever think that most of your test functions were actually *the same test
 
  - In addition, `pytest-cases` improves `pytest`'s fixture mechanism to support "fixture unions". This is a **major change** in the internal `pytest` engine, unlocking many possibilities such as using fixture references as parameter values in a test function. See [here](pytest_goodies.md#fixture_union).
 
-`pytest-cases` is fully compliant with [pytest-harvest](https://smarie.github.io/python-pytest-harvest/) and [pytest-steps](https://smarie.github.io/python-pytest-steps/) so you can create test suites with several steps, send each case on the full suite, and monitor the execution times and created artifacts. See also [this example](https://smarie.github.io/pytest-patterns/) (a bit old, needs to be refreshed) showing how to combine the various plugins to create data science benchmarks.
+`pytest-cases` is fully compliant with [pytest-harvest](https://smarie.github.io/python-pytest-harvest/) so you can easily monitor the execution times and created artifacts. With it, it becomes very easy to create a complete data science benchmark, for example comparing various models on various datasets as illustrated below (from the [example](examples.md) section):
+
+![benchmark_plots_example](imgs/0_bench_plots_example4.png)
 
 ## Installing
 

docs/imgs/0_bench_plots_example2.png

@@ -5,6 +5,7 @@ docs_dir: .
 site_dir: ../site
 nav:
     - Home: index.md
+    - Examples: examples.md
     - pytest goodies: pytest_goodies.md
     - fixture unions theory: unions_theory.md
     - API reference: api_reference.md