doc: tutorial += mention ./pants.bootstrap.
doc: tutorial += mention ./pants.bootstrap.

Eagerly looking forward to removing this mention when Pants can
download itself.

(sapling split of 988c040d5d71eab81fcba99863bd9f574dc1737e)
qma/pants,kwlzn/pants,mateor/pants,qma/pants,square/pants,TansyArron/pants,tejal29/pants,cevaris/pants,pombredanne/pants,dturner-tw/pants,di0spyr0s/pants,jtrobec/pants,kwlzn/pants,peiyuwang/pants,lahosken/pants,peiyuwang/pants,gmalmquist/pants,twitter/pants,jtrobec/pants,sameerparekh/pants,megaserg/pants,dbentley/pants,areitz/pants,laurentgo/pants,dgomez10/xanon,landism/pants,cevaris/pants,wisechengyi/pants,pantsbuild/pants,kslundberg/pants,lahosken/pants,foursquare/pants,jsirois/pants,sid-kap/pants,UnrememberMe/pants,mateor/pants,tdyas/pants,Gabriel439/pants,di0spyr0s/pants,wisechengyi/pants,TansyArron/pants,Gabriel439/pants,slyphon/pants,tdyas/pants,ity/pants,benjyw/pants,pgroudas/pants,landism/pants,baroquebobcat/pants,pgroudas/pants,megaserg/pants,TansyArron/pants,qma/pants,digwanderlust/pants,scode/pants,TansyArron/pants,pombredanne/pants,digwanderlust/pants,jessrosenfield/pants,sid-kap/pants,digwanderlust/pants,scode/pants,ericzundel/pants,kwlzn/pants,baroquebobcat/pants,tdyas/pants,UnrememberMe/pants,ity/pants,jessrosenfield/pants,areitz/pants,sameerparekh/pants,pantsbuild/pants,Gabriel439/pants,twitter/pants,15Dkatz/pants,gmalmquist/pants,foursquare/pants,baroquebobcat/pants,UnrememberMe/pants,scode/pants,sameerparekh/pants,lahosken/pants,sameerparekh/pants,twitter/pants,scode/pants,digwanderlust/pants,jtrobec/pants,areitz/pants,dgomez10/xanon,pombredanne/pants,lahosken/pants,slyphon/pants,sid-kap/pants,TansyArron/pants,cevaris/pants,wisechengyi/pants,manasapte/pants,baroquebobcat/pants,lahosken/pants,jsirois/pants,baroquebobcat/pants,sameerparekh/pants,dgomez10/xanon,qma/pants,cevaris/pants,Gabriel439/pants,tdyas/pants,megaserg/pants,peiyuwang/pants,manasapte/pants,dbentley/pants,fkorotkov/pants,lahosken/pants,scode/pants,areitz/pants,megaserg/pants,sid-kap/pants,fkorotkov/pants,dgomez10/xanon,ity/pants,TansyArron/pants,Gabriel439/pants,di0spyr0s/pants,UnrememberMe/pants,dbentley/pants,lahosken/pants,pantsbuild/pants,UnrememberMe/pants,manasapte/pants,gmalmquist/pants,dgomez10/xanon,manasapte/pants,sameerparekh/pants,benjyw/pants,mateor/pants,mateor/pants,digwanderlust/pants,fkorotkov/pants,square/pants,peiyuwang/pants,scode/pants,foursquare/pants,pantsbuild/pants,dturner-tw/pants,landism/pants,kslundberg/pants,15Dkatz/pants,landism/pants,slyphon/pants,tdyas/pants,sameerparekh/pants,15Dkatz/pants,di0spyr0s/pants,kwlzn/pants,ericzundel/pants,benjyw/pants,dgomez10/xanon,megaserg/pants,manasapte/pants,laurentgo/pants,dbentley/pants,baroquebobcat/pants,ericzundel/pants,sid-kap/pants,tejal29/pants,dbentley/pants,jtrobec/pants,tdyas/pants,qma/pants,lahosken/pants,square/pants,mateor/pants,sid-kap/pants,ity/pants,manasapte/pants,cevaris/pants,fkorotkov/pants,sid-kap/pants,pgroudas/pants,pgroudas/pants,scode/pants,UnrememberMe/pants,15Dkatz/pants,di0spyr0s/pants,wisechengyi/pants,pantsbuild/pants,benjyw/pants,UnrememberMe/pants,tejal29/pants,dturner-tw/pants,areitz/pants,pombredanne/pants,slyphon/pants,tejal29/pants,laurentgo/pants,dgomez10/xanon,pgroudas/pants,cevaris/pants,dgomez10/xanon,tdyas/pants,wisechengyi/pants,ity/pants,landism/pants,jessrosenfield/pants,peiyuwang/pants,digwanderlust/pants,foursquare/pants,dgomez10/xanon,ericzundel/pants,jsirois/pants,megaserg/pants,landism/pants,dturner-tw/pants,jtrobec/pants,foursquare/pants,benjyw/pants,benjyw/pants,gmalmquist/pants,twitter/pants,jessrosenfield/pants,15Dkatz/pants,kslundberg/pants,UnrememberMe/pants,mateor/pants,dbentley/pants,Gabriel439/pants,dgomez10/xanon,tdyas/pants,ericzundel/pants,ity/pants,15Dkatz/pants,peiyuwang/pants,landism/pants,kslundberg/pants,dbentley/pants,twitter/pants,foursquare/pants,jessrosenfield/pants,di0spyr0s/pants,twitter/pants,twitter/pants,tejal29/pants,areitz/pants,mateor/pants,dgomez10/xanon,tdyas/pants,pombredanne/pants,kwlzn/pants,15Dkatz/pants,baroquebobcat/pants,laurentgo/pants,jessrosenfield/pants,laurentgo/pants,twitter/pants,ity/pants,gmalmquist/pants,pombredanne/pants,qma/pants,qma/pants,pantsbuild/pants,dturner-tw/pants,Gabriel439/pants,landism/pants,pantsbuild/pants,dturner-tw/pants,pombredanne/pants,gmalmquist/pants,mateor/pants,wisechengyi/pants,megaserg/pants,15Dkatz/pants,square/pants,foursquare/pants,peiyuwang/pants,baroquebobcat/pants,jtrobec/pants,peiyuwang/pants,kslundberg/pants,fkorotkov/pants,fkorotkov/pants,jtrobec/pants,baroquebobcat/pants,foursquare/pants,areitz/pants,fkorotkov/pants,dturner-tw/pants,ericzundel/pants,di0spyr0s/pants,jessrosenfield/pants,wisechengyi/pants,wisechengyi/pants,ericzundel/pants,slyphon/pants,kslundberg/pants,cevaris/pants,pgroudas/pants,kwlzn/pants,wisechengyi/pants,twitter/pants,gmalmquist/pants,slyphon/pants,laurentgo/pants,foursquare/pants,manasapte/pants,benjyw/pants,kwlzn/pants,UnrememberMe/pants,TansyArron/pants,slyphon/pants,ericzundel/pants,fkorotkov/pants,kslundberg/pants