fix typo in readme, fix apriltag_detector dependency

README.md

@@ -19,7 +19,9 @@ repo=tagslam
 url=https://github.com/berndpfrommer/${repo}.git
 ```
 
-and follow the ROS2 build instructions [here](https://github.com/ros-misc-utilities/.github/blob/master/docs/build_ros_repository.md)
+and follow the ROS2 build instructions
+[here](https://github.com/ros-misc-utilities/.github/blob/master/docs/build_ros_repository.md).
+However, you need to modify the instructions to compile the ``ros2`` branch.
 
 Make sure to source your workspace's ``install/setup.bash`` afterwards.
 
@@ -56,12 +58,6 @@ ros2 run tagslam tagslam_from_bag --ros-args -p "cameras:=./cameras.yaml" -p "ta
 ```
 
 
-## License
-
-This software and any future contributions to it 
-```
-
-
 ## License
 
 This software and any future contributions to it are licensed under

package.xml

@@ -26,14 +26,14 @@
   <depend>tf2_msgs</depend>
   <depend>tf2</depend>
   <depend>yaml-cpp</depend>
+  <depend>apriltag_detector</depend>
 
 
   <test_depend>ament_lint_auto</test_depend>
   <test_depend>ament_lint_common</test_depend>
   <test_depend>ament_cmake_clang_format</test_depend>
   <test_depend>ament_cmake_gtest</test_depend>
 
-  <exec_depend>apriltag_detector</exec_depend>
 
   <export>
     <build_type>ament_cmake</build_type>