Merge branch 'master' into test_pg

* master:
  Update README.md

Author: pgleeson

README.md

@@ -145,3 +145,6 @@ Note these features can be accessed easily with the [pyNeuroML](https://docs.neu
         pynml -sbml-import SBMLFile.sbml duration dt
 
 See also https://github.com/ModECI/modelspec/blob/main/examples/COMBINE.md.
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