Update README.md

README.md

-<p>please run this command on raspberry pi terminal
+<p>Run this command on raspberry pi terminal
 <pre>
     <code>curl -k https://gitlab.del.ac.id/lamboksinaga/node-red-custom/raw/master/install.sh | sh</code>
-</pre>
+</pre>
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+<p>This command will clone this project to raspberry pi, setup crontab to run the API at reboot and auto update every 1 minute.
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