wrong setting of git config

[HayataToshihiro]

I committed kmeans_clustering a while ago, but the setting of git config was wrong and fixed it correctly. If you are ok, please merge again.

[coveralls]

Pull Request Test Coverage Report for Build 856

• 3429 of 3829 (89.55%) changed or added relevant lines in 87 files are covered.
• 192 unchanged lines in 28 files lost coverage.
• Overall coverage decreased (-0.1%) to 90.342%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
AerialNavigation/drone_3d_trajectory_following/drone_3d_trajectory_following.py	101	102	99.02%
Localization/unscented_kalman_filter/unscented_kalman_filter.py	43	44	97.73%
Mapping/circle_fitting/circle_fitting.py	63	64	98.44%
PathTracking/lqr_speed_steer_control/lqr_speed_steer_control.py	19	20	95.0%
SLAM/EKFSLAM/ekf_slam.py	130	131	99.24%
PathPlanning/DynamicWindowApproach/dynamic_window_approach.py	13	15	86.67%
PathPlanning/RRT/rrt_with_pathsmoothing.py	1	3	33.33%
PathPlanning/RRTStarDubins/rrt_star_dubins.py	6	8	75.0%
PathPlanning/StateLatticePlanner/state_lattice_planner.py	26	28	92.86%
PathPlanning/VoronoiRoadMap/voronoi_road_map.py	5	7	71.43%

Files with Coverage Reduction	New Missed Lines	%
PathTracking/stanley_controller/stanley_controller.py	1	96.39%
PathPlanning/BezierPath/bezier_path.py	1	98.51%
PathPlanning/QuinticPolynomialsPlanner/quintic_polynomials_planner.py	1	98.91%
PathPlanning/ModelPredictiveTrajectoryGenerator/model_predictive_trajectory_generator.py	1	89.23%
PathPlanning/DubinsPath/dubins_path_planning.py	2	89.71%
PathPlanning/VoronoiRoadMap/voronoi_road_map.py	2	94.87%
PathPlanning/RRT/simple_rrt.py	2	94.44%
PathPlanning/RRTDubins/rrt_dubins.py	3	93.58%
PathPlanning/Dijkstra/dijkstra.py	4	87.88%
PathPlanning/ClosedLoopRRTStar/pure_pursuit.py	4	96.09%

Totals
Change from base Build 855:	-0.1%
Covered Lines:	6595
Relevant Lines:	7300

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💛 - Coveralls