updated Download section of README. Removed link to empty downloads section and nonexistent minified file, and updated uncompressed filesize
calling waterfall with a non-array first argument results in an error
added an example of binding an iterator
fixed a typo
fixed a couple typos for grammar sticklers
Fix verb agreement 

fixed verb agreement ("should be process" -> "should be processed"); rephrased explanation of payload default. 
Merge pull request #261 from RubyTuesdayDONO/patch-1

Fix verb agreement
Merge pull request #258 from brianmaissy/typo

fixed a couple typos for grammar sticklers
Merge pull request #257 from brianmaissy/bindExample

Added an example of binding an iterator to a context in the README
Merge pull request #251 from brianmaissy/waterfall

calling waterfall with a non-array first argument results in an error
Merge pull request #250 from brianmaissy/documentation

updated Download section of README. Removed link to empty downloads sect...