README.md instructions to start frontend don't work

[eswenson1]

README.md says:

Run the frontend in a separate Terminal 2

open http://localhost:3000
make frontend-up

However, the Makefile has this target:

frontend-up:
        @open http://localhost:3000
        @cd js-javascript && yarn exec vite

Note that the Makefile already includes the "open http://localhost:3000". However, this make target doesn't work because there is no js-javascript subdirectory. There is a js-frontend directory, however. The Makefile should be updated.

[kyledinh]

Cool!! Thanks, I'll update it.