Update README.md

gellanyhassan0 · Jun 18, 2022 · cf0960f · cf0960f
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@@ -139,4 +139,8 @@ http://0.0.0.0:8000/polls
 
 # docker system Remove unused data
 <code>docker system prune --force</code><br>
+
+#docker check and delete volume
+<code>docker system df</code><br>
+<code>docker system prune</code><br>