Hello! If you think your edits have been wrongly reverted you can go to Administrator's noticeboard to report. However, I do not think your source is unbiased either. They openly supports the dictatorial Chinese government. As you know, Tibet was once an independent nation during the Qing Dynasty but annexed later by China. The current communist government have done many atrocity in Tibet, so it's not unusual to see pro-Tibet information on Wikipedia. Remember the Tiananmen Massacre and the brutal persecution of Falun Gong committed by the current regime. If you want to present the information in that website as the position of the Chinese government, you can, but presenting them as facts is probably not a good idea.