Fix URL in README; set svn:mime-type on HTML files.
Fix URL in README; set svn:mime-type on HTML files.

kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom,kervinck/gigatron-rom