docs: fix speling in cachurl reference
docs: fix speling in cachurl reference

clearswift/trafficserver,bryancall/trafficserver,taoyunxing/trafficserver,rpufky/trafficserver,chitianhao/trafficserver,rpufky/trafficserver,vmamidi/trafficserver,duke8253/trafficserver,PSUdaemon/trafficserver,chenglongwei/trafficserver,pbchou/trafficserver,bryancall/trafficserver,pbchou/trafficserver,taoyunxing/trafficserver,SolidWallOfCode/trafficserver,persiaAziz/trafficserver,bryancall/trafficserver,clearswift/trafficserver,duke8253/trafficserver,davidbz/trafficserver,chenglongwei/trafficserver,duke8253/trafficserver,duke8253/trafficserver,taoyunxing/trafficserver,dyrock/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,rahmalik/trafficserver,chenglongwei/trafficserver,pbchou/trafficserver,rahmalik/trafficserver,dyrock/trafficserver,chenglongwei/trafficserver,reveller/trafficserver,SolidWallOfCode/trafficserver,vmamidi/trafficserver,duke8253/trafficserver,davidbz/trafficserver,davidbz/trafficserver,taoyunxing/trafficserver,rahmalik/trafficserver,chenglongwei/trafficserver,PSUdaemon/trafficserver,reveller/trafficserver,chenglongwei/trafficserver,duke8253/trafficserver,rahmalik/trafficserver,bryancall/trafficserver,rpufky/trafficserver,vmamidi/trafficserver,dyrock/trafficserver,clearswift/trafficserver,taoyunxing/trafficserver,dyrock/trafficserver,PSUdaemon/trafficserver,PSUdaemon/trafficserver,persiaAziz/trafficserver,persiaAziz/trafficserver,chitianhao/trafficserver,chitianhao/trafficserver,persiaAziz/trafficserver,dyrock/trafficserver,clearswift/trafficserver,dyrock/trafficserver,reveller/trafficserver,pbchou/trafficserver,taoyunxing/trafficserver,rahmalik/trafficserver,duke8253/trafficserver,PSUdaemon/trafficserver,clearswift/trafficserver,rpufky/trafficserver,rahmalik/trafficserver,rpufky/trafficserver,SolidWallOfCode/trafficserver,chenglongwei/trafficserver,SolidWallOfCode/trafficserver,rpufky/trafficserver,reveller/trafficserver,PSUdaemon/trafficserver,davidbz/trafficserver,chitianhao/trafficserver,bryancall/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,davidbz/trafficserver,rahmalik/trafficserver,vmamidi/trafficserver,rpufky/trafficserver,chitianhao/trafficserver,reveller/trafficserver,rahmalik/trafficserver,reveller/trafficserver,persiaAziz/trafficserver,bryancall/trafficserver,clearswift/trafficserver,clearswift/trafficserver,pbchou/trafficserver,PSUdaemon/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,persiaAziz/trafficserver,persiaAziz/trafficserver,clearswift/trafficserver,taoyunxing/trafficserver,vmamidi/trafficserver,PSUdaemon/trafficserver,taoyunxing/trafficserver,PSUdaemon/trafficserver,clearswift/trafficserver,pbchou/trafficserver,taoyunxing/trafficserver,rahmalik/trafficserver,reveller/trafficserver,rpufky/trafficserver,chenglongwei/trafficserver,persiaAziz/trafficserver,reveller/trafficserver,rpufky/trafficserver,SolidWallOfCode/trafficserver,reveller/trafficserver