[query/docs] fix table join description. (#8467)
[query/docs] fix table join description. (#8467)

* improve table join description

* fix

* agreed?

* add clearer missing explanation

* fix

* join strategy -> join type
hail-is/hail,danking/hail,hail-is/hail,danking/hail,danking/hail,danking/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail,hail-is/hail,hail-is/hail,cseed/hail,cseed/hail,cseed/hail,danking/hail,danking/hail,cseed/hail,danking/hail,hail-is/hail,hail-is/hail,cseed/hail,cseed/hail,danking/hail