Update README.md

Directory indexes! We have it!
Move things around in freegeoip app
Mark _coro_swapcontext() as __attribute__((noinline))
Save hash value in entry

Compare hash value first, then call the key comparison function. This should
provide faster hash table lookups.

Code has been written by Lucas De Marchi <lucas.demarchi@intel.com> for
libkmod -- which lwan's hash table implementation heavely bases upon.  A
blog post detailing this is available here:
http://www.politreco.com/2013/09/optimizing-hash-table-with-kmod-as-testbed/
Make sure lwan didn't crash while testing
Fix some test expectations
Add malformed request tests
Test requests with multiple accept-encoding values