Add a note that users must have premium SD account. (#828)
Add a note that users must have premium SD account. (#828)


bogdandrutu/instrumentation-java,census-instrumentation/opencensus-java,census-instrumentation/opencensus-java,sebright/opencensus-java,sebright/instrumentation-java,sebright/instrumentation-java,songy23/instrumentation-java,bogdandrutu/opencensus-java,bogdandrutu/instrumentation-java,songy23/instrumentation-java,sebright/opencensus-java,bogdandrutu/opencensus-java,census-instrumentation/opencensus-java,sebright/opencensus-java,songy23/instrumentation-java,bogdandrutu/opencensus-java