fix README

Author: AtsushiSakai

README.md

@@ -13,6 +13,7 @@
 Python codes for robotics algorithm.
 
 
+
 # Table of Contents
    * [What is this?](#what-is-this)
    * [Requirements](#requirements)
@@ -26,7 +27,7 @@ Python codes for robotics algorithm.
       * [Gaussian grid map](#gaussian-grid-map)
       * [Ray casting grid map](#ray-casting-grid-map)
       * [k-means object clustering](#k-means-object-clustering)
-      * [L-Shape fitting](#l-shape-fitting)
+      * [Rectangle fitting](#rectangle-fitting)
    * [SLAM](#slam)
       * [Iterative Closest Point (ICP) Matching](#iterative-closest-point-icp-matching)
       * [FastSLAM 1.0](#fastslam-10)
@@ -196,9 +197,9 @@ This is a 2D object clustering with k-means algorithm.
 
 ![2](https://github.com/AtsushiSakai/PythonRoboticsGifs/raw/master/Mapping/kmeans_clustering/animation.gif)
 
-## L-Shape fitting
+## Rectangle fitting
 
-This is a 2D L shape fitting for vehicle detection.
+This is a 2D rectangle fitting for vehicle detection.
 
 ![2](https://github.com/AtsushiSakai/PythonRoboticsGifs/raw/master/Mapping/rectangle_fitting/animation.gif)
 
@@ -607,3 +608,4 @@ This is a list: [Users comments](https://github.com/AtsushiSakai/PythonRobotics/
 
 
 
+