add the new BridgeDb RShiny service?

[egonw]

@tabbassidaloii, can you plz consider adding the new BridgeDb RShiny service to https://www.bridgedb.org/pages/webservice.html ?

[tabbassidaloii]

@egonw, @DeniseSl22 has already added it on the main page. I will add it on that page too.