updated README.md

[Such6]

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[Shivansh-yadav13]

@hamees-sayed @wliao008 any suggestions?

[hamees-sayed]

@Shivansh-yadav13 we can also add an example command to run the docker image locally, like this:
docker run -p 3000:3000 -v /sqlite_database/data.db:/app/sqlite_database -e SQLITE_NAME=data.db ghcr.io/shivansh-yadav13/sqlite-ui:latest

and add a note to change the port if 3000 is used by another process, additionally;
docker run -p 3000:3000 -v /sqlite_database/data.db:/app/sqlite_database -e SQLITE_NAME=data.db shivansh-yadav13/sqlite-ui:latest
running this command was giving me an error, so I prefixed the image with ghcr.io/ and it worked. So maybe we could edit it out as well