[Doc] Refine top of README, add GLib bindings to README, fix ASF link
[Doc] Refine top of README, add GLib bindings to README, fix ASF link

Change-Id: I227eab4be9d8df54a71731c7b52496aff09d0f6a

itaiin/arrow,icexelloss/arrow,majetideepak/arrow,cpcloud/arrow,icexelloss/arrow,tebeka/arrow,dremio/arrow,siddharthteotia/arrow,wagavulin/arrow,icexelloss/arrow,wesm/arrow,xhochy/arrow,renesugar/arrow,wesm/arrow,itaiin/arrow,pcmoritz/arrow,laurentgo/arrow,pcmoritz/arrow,dremio/arrow,siddharthteotia/arrow,yufeldman/arrow,laurentgo/arrow,wesm/arrow,yufeldman/arrow,wagavulin/arrow,pcmoritz/arrow,kou/arrow,xhochy/arrow,siddharthteotia/arrow,laurentgo/arrow,cpcloud/arrow,xhochy/arrow,siddharthteotia/arrow,yufeldman/arrow,apache/arrow,kou/arrow,kou/arrow,wesm/arrow,kou/arrow,majetideepak/arrow,pcmoritz/arrow,tebeka/arrow,dremio/arrow,cpcloud/arrow,renesugar/arrow,laurentgo/arrow,wesm/arrow,siddharthteotia/arrow,pcmoritz/arrow,wesm/arrow,kou/arrow,majetideepak/arrow,tebeka/arrow,pcmoritz/arrow,xhochy/arrow,laurentgo/arrow,pcmoritz/arrow,apache/arrow,siddharthteotia/arrow,yufeldman/arrow,wagavulin/arrow,itaiin/arrow,wagavulin/arrow,majetideepak/arrow,itaiin/arrow,kou/arrow,itaiin/arrow,pcmoritz/arrow,dremio/arrow,apache/arrow,cpcloud/arrow,cpcloud/arrow,tebeka/arrow,itaiin/arrow,kou/arrow,wagavulin/arrow,xhochy/arrow,wesm/arrow,wesm/arrow,renesugar/arrow,pcmoritz/arrow,laurentgo/arrow,apache/arrow,icexelloss/arrow,majetideepak/arrow,cpcloud/arrow,wesm/arrow,laurentgo/arrow,apache/arrow,cpcloud/arrow,majetideepak/arrow,dremio/arrow,majetideepak/arrow,tebeka/arrow,kou/arrow,majetideepak/arrow,wesm/arrow,itaiin/arrow,kou/arrow,renesugar/arrow,wagavulin/arrow,kou/arrow,icexelloss/arrow,laurentgo/arrow,cpcloud/arrow,itaiin/arrow,cpcloud/arrow,dremio/arrow,renesugar/arrow,xhochy/arrow,apache/arrow,renesugar/arrow,wagavulin/arrow,wesm/arrow,cpcloud/arrow,wagavulin/arrow,icexelloss/arrow,pcmoritz/arrow,majetideepak/arrow,siddharthteotia/arrow,siddharthteotia/arrow,wagavulin/arrow,icexelloss/arrow,xhochy/arrow,dremio/arrow,renesugar/arrow,icexelloss/arrow,siddharthteotia/arrow,laurentgo/arrow,itaiin/arrow,xhochy/arrow,wesm/arrow,renesugar/arrow,cpcloud/arrow,icexelloss/arrow,xhochy/arrow,majetideepak/arrow,icexelloss/arrow,renesugar/arrow,kou/arrow,kou/arrow,itaiin/arrow,cpcloud/arrow,renesugar/arrow,majetideepak/arrow,apache/arrow,tebeka/arrow,xhochy/arrow,xhochy/arrow,laurentgo/arrow,tebeka/arrow,yufeldman/arrow,apache/arrow,siddharthteotia/arrow,renesugar/arrow,tebeka/arrow,apache/arrow,icexelloss/arrow,majetideepak/arrow,laurentgo/arrow,majetideepak/arrow,laurentgo/arrow,itaiin/arrow,tebeka/arrow,wesm/arrow,renesugar/arrow,icexelloss/arrow,pcmoritz/arrow,laurentgo/arrow,dremio/arrow,renesugar/arrow,wagavulin/arrow,xhochy/arrow,majetideepak/arrow,cpcloud/arrow,apache/arrow,apache/arrow,icexelloss/arrow,wesm/arrow,yufeldman/arrow,dremio/arrow,cpcloud/arrow,tebeka/arrow,itaiin/arrow,pcmoritz/arrow,pcmoritz/arrow,siddharthteotia/arrow,apache/arrow,dremio/arrow,xhochy/arrow,apache/arrow,icexelloss/arrow,kou/arrow,renesugar/arrow,apache/arrow,yufeldman/arrow,itaiin/arrow,xhochy/arrow,pcmoritz/arrow,renesugar/arrow,itaiin/arrow,dremio/arrow,majetideepak/arrow,yufeldman/arrow,pcmoritz/arrow,wagavulin/arrow,laurentgo/arrow,kou/arrow,yufeldman/arrow,laurentgo/arrow,wagavulin/arrow,xhochy/arrow,yufeldman/arrow,yufeldman/arrow,itaiin/arrow