Update README.md

README.md

@@ -60,7 +60,7 @@ This package file includes a launch file named spawn_road.launch which is intend
 * **road_path**: (default=$(env HOME)/Downloads) path where the road image is located.
 * **x** (default=0.0) x position where the road will placed in the simulated environment with respect to the parent frame.
 * **y** (default=0.0) y position where the road will placed in the simulated environment with respect to the parent frame.
-* **yaw** (default=0.0) orientation of the road with respect to the parent frame
+* **yaw** (default=0.0) orientation of the road with respect to the parent frame.
 * **parent** (default=map) parent reference frame used to place the road in the simulated environment.
 
 To spawn a road from an other launch file, include the following lines:
@@ -76,7 +76,7 @@ To spawn a road from an other launch file, include the following lines:
   </include>
 ```
 
-A test launch file is provided to visualize the road in RVIZ. Ti use it, execute the following command:
+A test launch file is provided to visualize the road in RVIZ. To use it, execute the following command:
 
 ```
 roslaunch road_description spawn_test.launch road_name:=<name of the road> road_path:=<path to the road> road_size:=<size of the road>`