diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
new file mode 100644
index 0000000..2d7e57e
--- /dev/null
+++ b/docs/CONTRIBUTING.md
@@ -0,0 +1,6 @@
+
+## Publishing
+
+https://golang.org/doc/modules/publishing
+
+    GOPROXY=proxy.golang.org go list -m github.com/mieuxvoter/majorityjudgment@v0.1.0
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