[ImgBot] Optimize images - #1

*Total -- 5,467.06kb -> 3,734.37kb (31.69%)

/images/knowledge_FOIL_grandparent.png -- 17.61kb -> 3.99kb (77.37%)
/images/refinement.png -- 61.55kb -> 19.01kb (69.11%)
/images/vacuum.svg -- 5.81kb -> 2.15kb (62.99%)
/notebooks/chapter19/images/vanilla.png -- 65.01kb -> 24.39kb (62.48%)
/notebooks/chapter19/images/nn.png -- 105.96kb -> 40.30kb (61.97%)
/notebooks/chapter19/images/backprop.png -- 186.75kb -> 71.15kb (61.9%)
/notebooks/chapter24/images/laplacian_kernels.png -- 40.57kb -> 16.21kb (60.05%)
/images/maze.png -- 4.47kb -> 1.98kb (55.64%)
/images/mdp-d.png -- 20.82kb -> 9.44kb (54.65%)
/images/mdp-c.png -- 17.86kb -> 8.29kb (53.6%)
/images/hillclimb-tsp.png -- 31.28kb -> 15.25kb (51.26%)
/notebooks/chapter24/images/stapler_bbox.png -- 1,339.88kb -> 687.64kb (48.68%)
/notebooks/chapter19/images/rnn_connections.png -- 329.94kb -> 176.74kb (46.43%)
/images/perceptron.png -- 19.29kb -> 11.66kb (39.56%)
/notebooks/chapter19/images/perceptron.png -- 19.29kb -> 11.66kb (39.56%)
/images/dirt.svg -- 14.13kb -> 8.57kb (39.33%)
/images/mdp-b.png -- 17.15kb -> 10.78kb (37.15%)
/notebooks/chapter19/images/corss_entropy_plot.png -- 78.20kb -> 54.11kb (30.81%)
/notebooks/chapter24/images/gradients.png -- 107.28kb -> 75.92kb (29.24%)
/images/ge2.jpg -- 25.60kb -> 18.76kb (26.71%)
/notebooks/chapter19/images/mse_plot.png -- 88.23kb -> 64.72kb (26.64%)
/images/knn_plot.png -- 44.20kb -> 32.53kb (26.4%)
/images/-0.04.jpg -- 16.54kb -> 12.37kb (25.18%)
/images/ge4.jpg -- 23.05kb -> 17.25kb (25.16%)
/images/-0.4.jpg -- 19.56kb -> 14.69kb (24.89%)
/images/-4.jpg -- 19.12kb -> 14.46kb (24.36%)
/notebooks/chapter19/images/rnn_unit.png -- 34.13kb -> 25.96kb (23.92%)
/images/ge0.jpg -- 19.75kb -> 15.09kb (23.61%)
/notebooks/chapter19/images/rnn_units.png -- 110.93kb -> 84.88kb (23.49%)
/notebooks/chapter24/images/RCNN.png -- 488.60kb -> 377.19kb (22.8%)
/images/knowledge_foil_family.png -- 34.85kb -> 27.13kb (22.15%)
/images/ge1.jpg -- 20.59kb -> 16.08kb (21.87%)
/images/mdp-a.png -- 31.24kb -> 24.47kb (21.68%)
/images/4.jpg -- 21.04kb -> 16.49kb (21.66%)
/notebooks/chapter19/images/nn_steps.png -- 247.17kb -> 194.47kb (21.32%)
/images/simple_reflex_agent.jpg -- 39.71kb -> 31.25kb (21.31%)
/notebooks/chapter19/images/autoencoder.png -- 94.76kb -> 74.71kb (21.15%)
/images/simple_problem_solving_agent.jpg -- 39.70kb -> 31.37kb (20.96%)
/images/point_crossover.png -- 5.52kb -> 4.41kb (20.09%)
/images/uniform_crossover.png -- 5.54kb -> 4.47kb (19.37%)
/images/model_based_reflex_agent.jpg -- 56.01kb -> 45.70kb (18.41%)
/images/cake_graph.jpg -- 42.84kb -> 35.08kb (18.13%)
/images/romania_map.png -- 14.85kb -> 12.17kb (18.08%)
/images/grid_mdp_agent.jpg -- 6.49kb -> 5.33kb (17.88%)
/images/model_goal_based_agent.jpg -- 60.49kb -> 49.67kb (17.87%)
/images/model_utility_based_agent.jpg -- 67.81kb -> 56.18kb (17.15%)
/images/parse_tree.png -- 13.33kb -> 11.08kb (16.89%)
/notebooks/chapter22/images/parse_tree.png -- 13.33kb -> 11.08kb (16.89%)
/images/restaurant.png -- 171.33kb -> 143.79kb (16.07%)
/images/broxrevised.png -- 229.09kb -> 197.62kb (13.74%)
/images/pop.jpg -- 107.35kb -> 92.74kb (13.62%)
/images/search_animal.svg -- 164.94kb -> 143.68kb (12.89%)
/images/pluralityLearner_plot.png -- 12.36kb -> 10.97kb (11.25%)
/notebooks/chapter24/images/derivative_of_gaussian.png -- 111.13kb -> 99.67kb (10.32%)
/images/neural_net.png -- 23.80kb -> 21.72kb (8.75%)
/images/ensemble_learner.jpg -- 16.19kb -> 15.13kb (6.52%)
/images/dirt05-icon.jpg -- 1.73kb -> 1.64kb (5.14%)
/images/general_learning_agent.jpg -- 31.83kb -> 30.21kb (5.1%)
/images/fig_5_2.png -- 47.90kb -> 45.62kb (4.74%)
/images/vacuum-icon.jpg -- 1.39kb -> 1.34kb (3.78%)
/images/aima3e_big.jpg -- 55.84kb -> 53.75kb (3.74%)
/images/sprinklernet.jpg -- 41.86kb -> 40.73kb (2.71%)
/images/stapler1-test.png -- 131.24kb -> 128.75kb (1.9%)
/notebooks/chapter24/images/stapler.png -- 131.24kb -> 128.75kb (1.9%)

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