fixed named anchor in readme
fixed named anchor in readme

simonyiszk/openwebrx,simonyiszk/openwebrx,dl9rdz/openwebrx-dl9rdz,simonyiszk/openwebrx,dl9rdz/openwebrx-dl9rdz,dl9rdz/openwebrx-dl9rdz,dl9rdz/openwebrx-dl9rdz