Create ThirdPartyPackageManagers.md
diff --git a/proposals/ThirdPartyPackageManagers.md b/proposals/ThirdPartyPackageManagers.md
new file mode 100644
index 0000000..39802f6
--- /dev/null
+++ b/proposals/ThirdPartyPackageManagers.md
@@ -0,0 +1 @@
+stub