message: Modified reading of ENV variable to follow correct syntax in Ruby
diff: @@ -4,7 +4,7 @@ Pod::Spec.new do |s|
  s.authors = 'Google Inc.'
  s.license = { :type => 'Apache' }
  s.homepage = 'https://github.com/tensorflow/tflite-support'
  - s.source = { :http => '${TFLS_DOWNLOAD_URL}'}
  + s.source = { :http => ENV['TFLS_DOWNLOAD_URL'] }
  s.summary = 'TensorFlow Lite Task Library - Vision'
  s.description = 'The Natural Language APIs of the TFLite Task Library'
  