Merge pull request #10 from akashzcoder/feature/docker_multistage

add references

Author: akashzcoder

blogs/multistage_docker.html

@@ -122,6 +122,9 @@ <h5 class="w3-center w3-padding-64"><span class="w3-tag w3-wide">Multi-stage  Do
       </div>
       <!-- Footer -->
       <footer class="w3-center w3-light-grey w3-padding-48 w3-large">
+            <blockquote>
+        <cite>References:<br> [1] <a href="https://docs.docker.com/develop/develop-images/multistage-build/">https://docs.docker.com/develop/develop-images/multistage-build/</a></cite>
+</blockquote>
          <p>
             Copyright &#x000A9;&nbsp;2020 &#x000B7; Akash Singh
          </p>
@@ -143,5 +146,6 @@ <h5 class="w3-center w3-padding-64"><span class="w3-tag w3-wide">Multi-stage  Do
          }
          document.getElementById("myLink").click();
       </script>
+
    </body>
 </html>