README.md: Update the Linuxbrew Updates issue URL
README.md: Update the Linuxbrew Updates issue URL

rwhogg/brew,rwhogg/brew,rwhogg/brew,Linuxbrew/brew,hanxue/linuxbrew,Linuxbrew/brew,maxim-belkin/brew,maxim-belkin/brew,hanxue/linuxbrew,Linuxbrew/brew,hanxue/linuxbrew,Linuxbrew/brew,maxim-belkin/brew