Documented oq reduce_sm [skip CI]
Documented oq reduce_sm [skip CI]


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Former-commit-id: 741eadda4e9415168f9c186603130348db2d227e
Former-commit-id: 5371f3e12b068f7006032bd5c0452759df864e2c
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine