Explicitly recommend to forceMerge before freezing (#36376)
Explicitly recommend to forceMerge before freezing (#36376)

given the benchmark results on #34352 it's important to recommend
users to `_force_merge` their indices to a single segment before freezing.
strapdata/elassandra,strapdata/elassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,vroyer/elassandra,vroyer/elassandra