[DOCS] Clarify force parameter for close job ML API
[DOCS] Clarify force parameter for close job ML API

Original commit: elastic/x-pack-elasticsearch@c170d43757cf8dc79a1d8a9150a72f4308b0494a

robin13/elasticsearch,scorpionvicky/elasticsearch,coding0011/elasticsearch,GlenRSmith/elasticsearch,nknize/elasticsearch,scorpionvicky/elasticsearch,gingerwizard/elasticsearch,gingerwizard/elasticsearch,robin13/elasticsearch,gfyoung/elasticsearch,robin13/elasticsearch,nknize/elasticsearch,gingerwizard/elasticsearch,gfyoung/elasticsearch,nknize/elasticsearch,gingerwizard/elasticsearch,vroyer/elassandra,scorpionvicky/elasticsearch,HonzaKral/elasticsearch,scorpionvicky/elasticsearch,strapdata/elassandra,coding0011/elasticsearch,uschindler/elasticsearch,uschindler/elasticsearch,gingerwizard/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,coding0011/elasticsearch,coding0011/elasticsearch,strapdata/elassandra,vroyer/elassandra,HonzaKral/elasticsearch,coding0011/elasticsearch,GlenRSmith/elasticsearch,gingerwizard/elasticsearch,uschindler/elasticsearch,gingerwizard/elasticsearch,nknize/elasticsearch,strapdata/elassandra,uschindler/elasticsearch,scorpionvicky/elasticsearch,gfyoung/elasticsearch,gfyoung/elasticsearch,uschindler/elasticsearch,HonzaKral/elasticsearch,HonzaKral/elasticsearch,nknize/elasticsearch,robin13/elasticsearch,gfyoung/elasticsearch