By Tom Wilson and Hannah Lang LONDON/WASHINGTON (Reuters) – Coinbase Global has removed ‘how to buy’ instructions for at least three crypto tokens which have been the subject of ‘rug pull’ warnings that investors may lose their money, saying on Thursday it plans to improve safeguards. Jaclyn Sales, a spokesperson for Coinbase, said the links were removed from the cryptocurrency exchange’s website after they were brought to its attention this week by Reuters. There would also be an upgrade in safeguards on its auto-created webpages, she said. Nasdaq-listed Coinbase features pages offering tips …