example on readme not working

[mantzaris]

1. The ys data needed the broadcast operator; ys = sin.(xs) .+ 0.5 * rand(100)
2. In attempting to use the loess model construction method, an error is returned even after 'using' all relevant packages;

model = loess(xs, ys)
ERROR: cannot assign variable Bootstrap.model from module Main
Stacktrace:
 [1] top-level scope at none:0

[tpapp]

I fixed the broadcasting in #32, and can't reproduce the second error.

[tlnagy]

You likely ran using Bootstrap which imported the model function into your namespace and then that conflicted with you setting the model variable with model = loess(xs, ys)