(Corrects planned gilt reduction in paragraph 7 to 80 billion pounds from 100 billion pounds) LONDON (Reuters) – The Bank of England raised its key interest rate to 2.25% from 1.75% on Thursday and said it would continue to “respond forcefully, as necessary” to inflation, despite the economy entering recession. The BoE estimates Britain’s economy will shrink 0.1% in the third quarter – partly due to the extra public holiday for Queen Elizabeth’s funeral – which, combined with a fall in output in the second quarter, meets the definition of a technical recession. Economists polled by Reuters las…