Correct a parameter in whats-new for v3.6 [skip CI]
Correct a parameter in whats-new for v3.6 [skip CI]

Former-commit-id: 39394e71f5faab6e7a296d53f04c3750a0ee32e6 [formerly 43d32bd11eb064b67cf07308b00862e21c678657]
Former-commit-id: aa5c20ed6b1b3482eeb9e6e6049b7b76331ec1d2
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine