README: consistent tabbing
README: consistent tabbing

some of these items were space indented, others were tabbed. Use tabs.

jhuntoo/dex,jhuntoo/dex,bcwaldon/dex,Tecsisa/dex,andrewstuart/dex,sercand/dex,Tecsisa/dex,sercand/dex,jhuntoo/dex,zlabjp/dex,Tecsisa/dex,sercand/dex,andrewstuart/dex,bcwaldon/dex,andrewstuart/dex,bcwaldon/dex,zlabjp/dex,zlabjp/dex