Why a devaluation may not improve a current account deficit

Thanks to tutor2u
https://www.tutor2u.net/economics/blog/sterlings-slide-yet-to-help-the-uk-economy-rebalance?utm_medium=email&utm_campaign=Economics%20daily%20digest%20Fri%204th%20August%202017&utm_content=Economics%20daily%20digest%20Fri%204th%20August%202017+CID_a8c483aae9b0dbdb7f6a66487e3637b2&utm_source=CampMonitor&utm_term=Sterlings%20slide%20yet%20to%20help%20the%20UK%20economy%20rebalance%20According%20to%20this%20piece%20from%20Chris%20Giles%20in%20the%20FT%20UK%20exporters%20have%20raised%20their%20prices%20and%20profit%20margins%20rather%20than%20driven%20increased%20volumes%20and%20market%20share%20in%20response%20to