Update README.md

Added sample code from #136
Merge pull request #137 from paulpdaniels/patch-1

Update README.md
Update README.md
Update README.md
FileCache: do not delete files during initial load (cache resize, etc).
SimpleFuture: Add silent cancellation (no callback).
This will unblock any calls to .get()

FileCache: key enumeration.
stop eating exceptions. this should be fun.
names threads. header parsing.
AsyncSSLSocket: Watch for specific Exceptions.
AsyncSocketMiddleware: add support for CONNECT directive to proxy SSL connections.
notes
add disabled ssl proxy test
Fix sample
AsyncServer: be more mindful of what exceptions are caught.
Remove keepRunning.
fix FileCache tests
Merge branch 'master' of https://github.com/koush/AndroidAsync

# By Koushik Dutta (13) and paulpdaniels (1)
# Via Koushik Dutta
* 'master' of https://github.com/koush/AndroidAsync:
  fix FileCache tests
  AsyncServer: be more mindful of what exceptions are caught. Remove keepRunning.
  Fix sample
  add disabled ssl proxy test
  notes
  AsyncSocketMiddleware: add support for CONNECT directive to proxy SSL connections.
  AsyncSSLSocket: Watch for specific Exceptions.
  names threads. header parsing.
  stop eating exceptions. this should be fun.
  SimpleFuture: Add silent cancellation (no callback). This will unblock any calls to .get()
  FileCache: do not delete files during initial load (cache resize, etc).
  Update README.md
  Update README.md
  Update README.md