Remove `Any` output from getting started guide

[bfirsh]

It'd be nice if we had an example that returned a real output rather than an arbitrary undefined JSON object.

cog/docs/getting-started.md

Lines 62 to 76 in 34ae4d6

	from typing import Any
	from cog import BasePredictor, Input, Path
	from tensorflow.keras.applications.resnet50 import ResNet50
	from tensorflow.keras.preprocessing import image as keras_image
	from tensorflow.keras.applications.resnet50 import preprocess_input, decode_predictions
	import numpy as np
	class ResNetPredictor(BasePredictor):
	def setup(self):
	"""Load the model into memory to make running multiple predictions efficient"""
	self.model = ResNet50(weights='resnet50_weights_tf_dim_ordering_tf_kernels.h5')
	# Define the arguments and types the model takes as input
	def predict(self, image: Path = Input(description="Image to classify")) -> Any:

See also #273

(edited by @zeke)