Merge pull request #31 from StatisticalRethinkingJulia/compathelper/new_version/2021-03-23-00-57-49-859-3227778385

CompatHelper: add new compat entry for "CmdStan" at version "6.1"

Author: goedman

Project.toml

@@ -16,6 +16,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 CSV = "0.5, 0.6, 0.7, 0.8"
+CmdStan = "6.1"
 DataFrames = "0.20, 0.21, 0.22"
 Distributions = "0.22, 0.23, 0.24"
 Formatting = "0.4"