docs: Update readme

Author: polarbeargo

README.md

@@ -1,7 +1,7 @@
 # RoboND-Map-My-World-Robot
 Udacity Robotics Software Engineer Nanodegree Term 2 Project: Map My World:
 
-RTAB-Map is the best solution for SLAM to develop robots that can map environments in 3D. These considerations come from RTAB-Map's speed and memory management, its custom developed tools for information analysis and, most importantly, the quality of the documentation. Being able to leverage RTAB-Map with our own robots will lead to a solid foundation for mapping and localization well. For this project we will be using the rtabmap_ros package, which is a ROS wrapper (API) for interacting with rtabmap. 
+RTAB-Map 's speed and memory management is the best solution for SLAM to develop robots and map environments in 3D for information analysis and the quality of the documentation. Being able to leverage RTAB-Map with our own robots will lead to a solid foundation for mapping and localization well. For this project, we will use the rtabmap_ros package, which is a ROS wrapper (API) for interacting with rtabmap. 
 
 ### Running the Scripts
 
@@ -16,7 +16,7 @@ Launch the world in Gazebo:
 ```
 catkin_make
 source devel/setup.bash 
-roslaunch slam_project world.launch world_file:=~/catkin_ws/src/slam_project/worlds/kitchen_dining.world`
+roslaunch slam_project world.launch world_file:=~/catkin_ws/src/slam_project/worlds/kitchen_dining.world
 ```  
 Launch the teleop node for keyboard control:  
 ```