Bazel docs: make it more clear that we can't yet accept pull requests.
Bazel docs: make it more clear that we can't yet accept pull requests.

The contributions.md file used to say this at the bottom, where this info
is out of view. I've moved it up where it's more visible.

--
MOS_MIGRATED_REVID=89495841

mikelalcon/bazel,rohitsaboo/bazel,ulfjack/bazel,rzagabe/bazel,dslomov/bazel,Topher-the-Geek/bazel,snnn/bazel,nkhuyu/bazel,perezd/bazel,charlieaustin/bazel,spxtr/bazel,dslomov/bazel,JackSullivan/bazel,rohitsaboo/bazel,Digas29/bazel,bitemyapp/bazel,gavares/bazel,Ansahmadiba/bazel,wakashige/bazel,variac/bazel,ButterflyNetwork/bazel,snnn/bazel,asarazan/bazel,charlieaustin/bazel,d/bazel,LuminateWireless/bazel,mikelikespie/bazel,davidzchen/bazel,whuwxl/bazel,iamthearm/bazel,kchodorow/bazel-1,dropbox/bazel,abergmeier-dsfishlabs/bazel,d/bazel,mikelikespie/bazel,mikelikespie/bazel,iamthearm/bazel,iamthearm/bazel,bitemyapp/bazel,snnn/bazel,aehlig/bazel,kidaa/bazel,iamthearm/bazel,akira-baruah/bazel,kchodorow/bazel,gavares/bazel,kchodorow/bazel,variac/bazel,xindaya/bazel,iamthearm/bazel,dslomov/bazel,hermione521/bazel,rzagabe/bazel,anupcshan/bazel,rhuss/bazel,d/bazel,anupcshan/bazel,whuwxl/bazel,juhalindfors/bazel-patches,JackSullivan/bazel,UrbanCompass/bazel,bazelbuild/bazel,mbrukman/bazel,werkt/bazel,zhexuany/bazel,twitter-forks/bazel,kchodorow/bazel-1,werkt/bazel,aehlig/bazel,safarmer/bazel,Asana/bazel,xindaya/bazel,kidaa/bazel,bitemyapp/bazel,joshua0pang/bazel,mikelikespie/bazel,cushon/bazel,werkt/bazel,safarmer/bazel,meteorcloudy/bazel,spxtr/bazel,LuminateWireless/bazel,asarazan/bazel,akira-baruah/bazel,zhexuany/bazel,anupcshan/bazel,ulfjack/bazel,mbrukman/bazel,aehlig/bazel,damienmg/bazel,mikelalcon/bazel,dslomov/bazel-windows,mbrukman/bazel,hhclam/bazel,dhootha/bazel,Krasnyanskiy/bazel,UrbanCompass/bazel,Krasnyanskiy/bazel,Topher-the-Geek/bazel,katre/bazel,rhuss/bazel,Topher-the-Geek/bazel,asarazan/bazel,dinowernli/bazel,rzagabe/bazel,zhexuany/bazel,davidzchen/bazel,d/bazel,kidaa/bazel,katre/bazel,bazelbuild/bazel,charlieaustin/bazel,rzagabe/bazel,dslomov/bazel-windows,wakashige/bazel,sicipio/bazel,Krasnyanskiy/bazel,joshua0pang/bazel,davidzchen/bazel,rhuss/bazel,dhootha/bazel,kchodorow/bazel-1,perezd/bazel,vt09/bazel,Ansahmadiba/bazel,perezd/bazel,spxtr/bazel,rohitsaboo/bazel,Topher-the-Geek/bazel,davidzchen/bazel,ButterflyNetwork/bazel,sicipio/bazel,rhuss/bazel,JackSullivan/bazel,dropbox/bazel,Digas29/bazel,rzagabe/bazel,werkt/bazel,katre/bazel,nkhuyu/bazel,aehlig/bazel,nkhuyu/bazel,Digas29/bazel,manashmndl/bazel,variac/bazel,Topher-the-Geek/bazel,twitter-forks/bazel,Asana/bazel,juhalindfors/bazel-patches,damienmg/bazel,anupcshan/bazel,davidzchen/bazel,dropbox/bazel,joshua0pang/bazel,charlieaustin/bazel,whuwxl/bazel,manashmndl/bazel,abergmeier-dsfishlabs/bazel,xindaya/bazel,mikelikespie/bazel,damienmg/bazel,safarmer/bazel,gavares/bazel,rzagabe/bazel,cushon/bazel,juhalindfors/bazel-patches,snnn/bazel,perezd/bazel,dslomov/bazel-windows,kamalmarhubi/bazel,LuminateWireless/bazel,ButterflyNetwork/bazel,dinowernli/bazel,hermione521/bazel,kchodorow/bazel,JackSullivan/bazel,wakashige/bazel,kchodorow/bazel-1,safarmer/bazel,asarazan/bazel,joshua0pang/bazel,cushon/bazel,manashmndl/bazel,Ansahmadiba/bazel,twitter-forks/bazel,mbrukman/bazel,gavares/bazel,murugamsm/bazel,dhootha/bazel,ruo91/bazel,nkhuyu/bazel,variac/bazel,anupcshan/bazel,nkhuyu/bazel,vt09/bazel,ButterflyNetwork/bazel,asarazan/bazel,gavares/bazel,variac/bazel,twitter-forks/bazel,vt09/bazel,mikelalcon/bazel,hhclam/bazel,mrdomino/bazel,charlieaustin/bazel,dslomov/bazel,ruo91/bazel,nkhuyu/bazel,perezd/bazel,ulfjack/bazel,aehlig/bazel,wakashige/bazel,dhootha/bazel,UrbanCompass/bazel,mikelalcon/bazel,iamthearm/bazel,dinowernli/bazel,bazelbuild/bazel,bitemyapp/bazel,gavares/bazel,akira-baruah/bazel,asarazan/bazel,whuwxl/bazel,werkt/bazel,kidaa/bazel,mrdomino/bazel,d/bazel,variac/bazel,asarazan/bazel,safarmer/bazel,meteorcloudy/bazel,abergmeier-dsfishlabs/bazel,vt09/bazel,xindaya/bazel,aehlig/bazel,bitemyapp/bazel,juhalindfors/bazel-patches,perezd/bazel,mrdomino/bazel,ulfjack/bazel,d/bazel,hhclam/bazel,whuwxl/bazel,mrdomino/bazel,hhclam/bazel,ButterflyNetwork/bazel,twitter-forks/bazel,LuminateWireless/bazel,Topher-the-Geek/bazel,juhalindfors/bazel-patches,bazelbuild/bazel,murugamsm/bazel,dhootha/bazel,joshua0pang/bazel,manashmndl/bazel,sicipio/bazel,meteorcloudy/bazel,dinowernli/bazel,joshua0pang/bazel,cushon/bazel,kamalmarhubi/bazel,snnn/bazel,wakashige/bazel,nkhuyu/bazel,bitemyapp/bazel,damienmg/bazel,sicipio/bazel,abergmeier-dsfishlabs/bazel,gavares/bazel,hhclam/bazel,meteorcloudy/bazel,kidaa/bazel,meteorcloudy/bazel,kamalmarhubi/bazel,manashmndl/bazel,mikelalcon/bazel,manashmndl/bazel,rhuss/bazel,hermione521/bazel,meteorcloudy/bazel,d/bazel,mikelalcon/bazel,damienmg/bazel,murugamsm/bazel,spxtr/bazel,Krasnyanskiy/bazel,cushon/bazel,Ansahmadiba/bazel,dinowernli/bazel,akira-baruah/bazel,katre/bazel,davidzchen/bazel,juhalindfors/bazel-patches,Digas29/bazel,mikelikespie/bazel,hhclam/bazel,mrdomino/bazel,kchodorow/bazel,akira-baruah/bazel,hermione521/bazel,vt09/bazel,rzagabe/bazel,kidaa/bazel,rzagabe/bazel,UrbanCompass/bazel,hermione521/bazel,rohitsaboo/bazel,safarmer/bazel,whuwxl/bazel,abergmeier-dsfishlabs/bazel,JackSullivan/bazel,kchodorow/bazel,kamalmarhubi/bazel,dslomov/bazel,xindaya/bazel,JackSullivan/bazel,Asana/bazel,ruo91/bazel,charlieaustin/bazel,zhexuany/bazel,meteorcloudy/bazel,mbrukman/bazel,Topher-the-Geek/bazel,ruo91/bazel,sicipio/bazel,damienmg/bazel,Digas29/bazel,LuminateWireless/bazel,mrdomino/bazel,Topher-the-Geek/bazel,xindaya/bazel,UrbanCompass/bazel,dinowernli/bazel,UrbanCompass/bazel,spxtr/bazel,snnn/bazel,Ansahmadiba/bazel,dropbox/bazel,xindaya/bazel,dslomov/bazel,twitter-forks/bazel,Asana/bazel,dhootha/bazel,kchodorow/bazel,manashmndl/bazel,Ansahmadiba/bazel,LuminateWireless/bazel,joshua0pang/bazel,JackSullivan/bazel,ButterflyNetwork/bazel,katre/bazel,spxtr/bazel,werkt/bazel,Asana/bazel,kamalmarhubi/bazel,sicipio/bazel,bitemyapp/bazel,katre/bazel,davidzchen/bazel,anupcshan/bazel,juhalindfors/bazel-patches,cushon/bazel,zhexuany/bazel,ruo91/bazel,Asana/bazel,dslomov/bazel-windows,ulfjack/bazel,snnn/bazel,ulfjack/bazel,Krasnyanskiy/bazel,Krasnyanskiy/bazel,rhuss/bazel,mbrukman/bazel,Krasnyanskiy/bazel,dhootha/bazel,Asana/bazel,vt09/bazel,murugamsm/bazel,Digas29/bazel,kidaa/bazel,spxtr/bazel,twitter-forks/bazel,wakashige/bazel,perezd/bazel,murugamsm/bazel,murugamsm/bazel,Krasnyanskiy/bazel,bazelbuild/bazel,dropbox/bazel,Ansahmadiba/bazel,variac/bazel,bitemyapp/bazel,ruo91/bazel,dslomov/bazel,abergmeier-dsfishlabs/bazel,bazelbuild/bazel,dslomov/bazel-windows,vt09/bazel,kidaa/bazel,akira-baruah/bazel,wakashige/bazel,kchodorow/bazel,ulfjack/bazel,charlieaustin/bazel,rohitsaboo/bazel,damienmg/bazel,kamalmarhubi/bazel,gavares/bazel,ruo91/bazel,dropbox/bazel,rohitsaboo/bazel,kchodorow/bazel-1,murugamsm/bazel,dslomov/bazel-windows,kchodorow/bazel-1,sicipio/bazel,zhexuany/bazel,rhuss/bazel,aehlig/bazel,hermione521/bazel