README.md: Remove a stray blank line
README.md: Remove a stray blank line

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