[PR] Update 02-third-party.md
[PR] Update 02-third-party.md

Summary:
Fixing spelling error
Closes https://github.com/facebook/flow/pull/3266

Differential Revision: D4599804

Pulled By: thejameskyle

fbshipit-source-id: 03101ea48dbeb53ffc808bad79f02dbcd351b094

gabro/flow,AgentME/flow,nmote/flow,samwgoldman/flow,nmote/flow,popham/flow,samwgoldman/flow,gabelevi/flow,MichaelDeBoey/flow,gabelevi/flow,jamesgpearce/flow,facebook/flow,samwgoldman/flow,ylu1317/flow,nmote/flow,fletcherw/flow,gabro/flow,facebook/flow,ylu1317/flow,claudiopro/flow,AgentME/flow,jamesgpearce/flow,ylu1317/flow,ylu1317/flow,popham/flow,mroch/flow,AgentME/flow,MichaelDeBoey/flow,gabelevi/flow,facebook/flow,gabro/flow,gabelevi/flow,gabro/flow,popham/flow,samwgoldman/flow,fletcherw/flow,jamesgpearce/flow,MichaelDeBoey/flow,mroch/flow,jamesgpearce/flow,TiddoLangerak/flow,JonathanUsername/flow,popham/flow,fletcherw/flow,gabelevi/flow,jamesgpearce/flow,samwgoldman/flow,TiddoLangerak/flow,JonathanUsername/flow,nmote/flow,gabelevi/flow,fletcherw/flow,AgentME/flow,JonathanUsername/flow,gabro/flow,gabelevi/flow,mroch/flow,claudiopro/flow,AgentME/flow,jamesgpearce/flow,fletcherw/flow,mroch/flow,TiddoLangerak/flow,facebook/flow,facebook/flow,jamesgpearce/flow,nmote/flow,samwgoldman/flow,MichaelDeBoey/flow,ylu1317/flow,nmote/flow,JonathanUsername/flow,mroch/flow,mroch/flow,JonathanUsername/flow,mroch/flow,nmote/flow,JonathanUsername/flow,claudiopro/flow,MichaelDeBoey/flow,fletcherw/flow,popham/flow,facebook/flow,TiddoLangerak/flow,claudiopro/flow,TiddoLangerak/flow,samwgoldman/flow,JonathanUsername/flow,popham/flow,gabro/flow,facebook/flow,popham/flow,claudiopro/flow