Update _docs/concepts/client_library/introduction/index.md

Author: ralph-lange

_docs/concepts/client_library/introduction/index.md

@@ -8,7 +8,7 @@ redirect_from:
 
 The Client Library provides the micro-ROS API for the user code, i.e., for application-level micro-ROS nodes. The goal is to provide all relevant, major ROS 2 concepts in an optimized implementation for microcontrollers. At the same time, we strive to make the API as compatible as possible to standard ROS 2, to facilitate porting of code.
 
-To minimize the long-term maintenance cost, we use existing data structures and algorithms from the ROS 2 stack and to bring necessary changes in the mainline stack as far as possible. That's why the micro-ROS client library is built up from standard [ROS 2 Client Support Library (rcl)](https://github.com/ros2/rcl/) and a new [ROS 2 Client Library package (rclc)](https://github.com/ros2/rclc/). Together, as depicted below, rcl + rclc form a feature-complete client library in the C programming language.
+To minimize the long-term maintenance cost, we use existing data structures and algorithms from the ROS 2 stack and bring necessary changes in the mainline stack as far as possible. That's why the micro-ROS client library is built up from standard [ROS 2 Client Support Library (rcl)](https://github.com/ros2/rcl/) and a new [ROS 2 Client Library package (rclc)](https://github.com/ros2/rclc/). Together, as depicted below, rcl + rclc form a feature-complete client library in the C programming language.
 
 <img src="/img/micro-ROS_architecture.png" style="display:block; width:50%; float:right;"/>
 
@@ -23,4 +23,4 @@ Check out the subpages (see left) for more information.
 
 <br style="clear:both;" />
 
-For the interested reader: The rationales for the decision to use a combination of rcl + rclc are explained in our [decision paper (PDF)](/download/client_library_decision_paper_2019.pdf) from 2019.
+For the interested reader: The rationales for the decision to use a combination of rcl + rclc are explained in our [decision paper (PDF)](/download/client_library_decision_paper_2019.pdf) from 2019.