Add explanation of =src in setup.cfg

gilesknap · coretl · commit 7f9d1afd59a2 · 2022-02-09T15:15:32.000Z
diff --git a/setup.cfg b/setup.cfg
@@ -17,8 +17,11 @@ classifiers =
 [options]
 python_requires = >=3.7
 packages = find:
+# =src is interpreted as {"": "src"}
+# as per recommendation here https://hynek.me/articles/testing-packaging/
 package_dir =
     =src
+    
 # Specify any package dependencies below.
 # install_requires =
 #     numpy
