doc: make transaction hook's style as same with global
doc: make transaction hook's style as same with global

This closes #78

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