diff --git a/README.md b/README.md
index 18a0ec0c3e05e7140f0340a787a15cac1d752881..7fde10ef67402a9b1d83da6f5b338e19674e4c0d 100644
--- a/README.md
+++ b/README.md
@@ -69,4 +69,6 @@ Encountered errors while bringing up the project.
 You will need to use Windows Powershell (as Admin) and enter:
 ```bash
         $Env:COMPOSE_CONVERT_WINDOWS_PATHS=1
-```
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+```
+***IMPORTANT*** If you run docker-compose kill you stop all the containers, if you run docker-compose up -d again the containers come back in the state you left them (so sites exsist that you created).
+If, after you run docker-compose kill you power off the Virtual Machine in vagrant (usually called default) then the next time you run docker-compose up -d it will rebuild the containers.
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