Improve Uber section on Showcase page
Improve Uber section on Showcase page

Summary:
We wanted to wait until we had a blog post and other stuff to add:

https://github.com/facebook/buck/pull/1105/files#r95489467

Now that we do, I created a separate section for apps that Uber builds with Buck, and linked to the blog post in which the iOS team described how we went from CocoaPods to a Monorepo using Buck.
Closes https://github.com/facebook/buck/pull/1303

Reviewed By: sdwilsh

Pulled By: sdwilsh

fbshipit-source-id: c713229

ilya-klyuchnikov/buck,Addepar/buck,LegNeato/buck,dsyang/buck,ilya-klyuchnikov/buck,shs96c/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,kageiit/buck,k21/buck,shs96c/buck,LegNeato/buck,shs96c/buck,shs96c/buck,nguyentruongtho/buck,k21/buck,zpao/buck,SeleniumHQ/buck,nguyentruongtho/buck,JoelMarcey/buck,Addepar/buck,robbertvanginkel/buck,shybovycha/buck,romanoid/buck,shybovycha/buck,marcinkwiatkowski/buck,dsyang/buck,zhan-xiong/buck,shs96c/buck,SeleniumHQ/buck,kageiit/buck,rmaz/buck,dsyang/buck,romanoid/buck,zpao/buck,rmaz/buck,dsyang/buck,shybovycha/buck,robbertvanginkel/buck,romanoid/buck,Addepar/buck,dsyang/buck,shs96c/buck,clonetwin26/buck,shybovycha/buck,zhan-xiong/buck,zpao/buck,SeleniumHQ/buck,brettwooldridge/buck,rmaz/buck,romanoid/buck,shs96c/buck,k21/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,JoelMarcey/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,robbertvanginkel/buck,Addepar/buck,JoelMarcey/buck,kageiit/buck,Addepar/buck,robbertvanginkel/buck,romanoid/buck,LegNeato/buck,zpao/buck,shybovycha/buck,LegNeato/buck,nguyentruongtho/buck,JoelMarcey/buck,nguyentruongtho/buck,brettwooldridge/buck,LegNeato/buck,shybovycha/buck,robbertvanginkel/buck,shybovycha/buck,marcinkwiatkowski/buck,k21/buck,dsyang/buck,brettwooldridge/buck,zhan-xiong/buck,LegNeato/buck,ilya-klyuchnikov/buck,rmaz/buck,clonetwin26/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,marcinkwiatkowski/buck,shybovycha/buck,zhan-xiong/buck,marcinkwiatkowski/buck,ilya-klyuchnikov/buck,marcinkwiatkowski/buck,zhan-xiong/buck,clonetwin26/buck,marcinkwiatkowski/buck,romanoid/buck,robbertvanginkel/buck,clonetwin26/buck,ilya-klyuchnikov/buck,facebook/buck,marcinkwiatkowski/buck,JoelMarcey/buck,SeleniumHQ/buck,dsyang/buck,SeleniumHQ/buck,clonetwin26/buck,brettwooldridge/buck,zpao/buck,robbertvanginkel/buck,LegNeato/buck,facebook/buck,JoelMarcey/buck,nguyentruongtho/buck,zhan-xiong/buck,k21/buck,k21/buck,facebook/buck,brettwooldridge/buck,shybovycha/buck,shybovycha/buck,rmaz/buck,facebook/buck,romanoid/buck,JoelMarcey/buck,rmaz/buck,zhan-xiong/buck,SeleniumHQ/buck,marcinkwiatkowski/buck,k21/buck,Addepar/buck,Addepar/buck,nguyentruongtho/buck,brettwooldridge/buck,LegNeato/buck,ilya-klyuchnikov/buck,LegNeato/buck,rmaz/buck,zhan-xiong/buck,shs96c/buck,k21/buck,k21/buck,marcinkwiatkowski/buck,k21/buck,robbertvanginkel/buck,rmaz/buck,rmaz/buck,romanoid/buck,dsyang/buck,SeleniumHQ/buck,facebook/buck,Addepar/buck,zpao/buck,shybovycha/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,brettwooldridge/buck,rmaz/buck,JoelMarcey/buck,facebook/buck,robbertvanginkel/buck,romanoid/buck,dsyang/buck,zhan-xiong/buck,rmaz/buck,ilya-klyuchnikov/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,LegNeato/buck,shs96c/buck,kageiit/buck,marcinkwiatkowski/buck,JoelMarcey/buck,shybovycha/buck,k21/buck,zpao/buck,zhan-xiong/buck,robbertvanginkel/buck,clonetwin26/buck,Addepar/buck,shybovycha/buck,k21/buck,JoelMarcey/buck,clonetwin26/buck,dsyang/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,clonetwin26/buck,romanoid/buck,robbertvanginkel/buck,LegNeato/buck,dsyang/buck,clonetwin26/buck,zhan-xiong/buck,SeleniumHQ/buck,zhan-xiong/buck,Addepar/buck,shs96c/buck,Addepar/buck,JoelMarcey/buck,clonetwin26/buck,SeleniumHQ/buck,clonetwin26/buck,brettwooldridge/buck,shs96c/buck,clonetwin26/buck,kageiit/buck,romanoid/buck,romanoid/buck,kageiit/buck,k21/buck,dsyang/buck,shs96c/buck,SeleniumHQ/buck,nguyentruongtho/buck,ilya-klyuchnikov/buck,rmaz/buck,shs96c/buck,LegNeato/buck,zhan-xiong/buck,Addepar/buck,kageiit/buck,SeleniumHQ/buck,Addepar/buck,romanoid/buck,clonetwin26/buck,dsyang/buck,LegNeato/buck,brettwooldridge/buck,rmaz/buck,ilya-klyuchnikov/buck,facebook/buck