Fix type error in TFTransformer example in README

[asw456]

Fixes the following Exception that occurs when running odf = transformer.transform(sdf) with Apache Spark 2.3.0, Scala 2.11 from Databricks

java.lang.Exception: The type of node 'input_tensor' (ScalarDoubleType) is not compatible with the data type of the column (ScalarFloatType)

[codecov-io]

Codecov Report

Merging #137 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #137   +/-   ##
=======================================
  Coverage   85.37%   85.37%           
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  Files          33       33           
  Lines        1921     1921           
  Branches       44       44           
=======================================
  Hits         1640     1640           
  Misses        281      281

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[sarchak]

Hitting the same issue any plans on merging this?

[ronitshaw]

Facing the same issue!