Update TensorFlow documentation (2.18.0)

Author: simon04

lib/docs/scrapers/tensorflow/tensorflow.rb

@@ -19,8 +19,8 @@ class Tensorflow < UrlScraper
       Code samples licensed under the Apache 2.0 License.
     HTML
 
-    version '2.16' do
-      self.release = "2.16.1"
+    version do
+      self.release = "2.18.0"
       self.base_url = "https://www.tensorflow.org/api_docs/python/tf"
     end
 

lib/docs/scrapers/tensorflow/tensorflow_cpp.rb

@@ -3,8 +3,8 @@ class TensorflowCpp < Tensorflow
     self.name = 'TensorFlow C++'
     self.slug = 'tensorflow_cpp'
 
-    version '2.16' do
-      self.release = "2.16.1"
+    version do
+      self.release = "2.18.0"
       self.base_url = "https://www.tensorflow.org/api_docs/cc"
     end