Small patches in tutorials (ros2#684)

* Typo in "Creating a Workspace"

Signed-off-by: maryaB-osr <[email protected]>

* assorted fixes

Signed-off-by: maryaB-osr <[email protected]>

Author: maryaB-osr

source/Tutorials/Creating-Your-First-ROS2-Package.rst

@@ -341,7 +341,9 @@ From ``dev_ws/src/my_package``, open ``package.xml`` using your preferred text e
      :linenos:
 
      <?xml version="1.0"?>
-     <?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+     <?xml-model
+        href="http://download.ros.org/schema/package_format3.xsd"
+        schematypens="http://www.w3.org/2001/XMLSchema"?>
      <package format="3">
       <name>my_package</name>
       <version>0.0.0</version>
@@ -365,7 +367,9 @@ From ``dev_ws/src/my_package``, open ``package.xml`` using your preferred text e
      :linenos:
 
      <?xml version="1.0"?>
-     <?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+     <?xml-model
+        href="http://download.ros.org/schema/package_format3.xsd"
+        schematypens="http://www.w3.org/2001/XMLSchema"?>
      <package format="3">
       <name>my_package</name>
       <version>0.0.0</version>

source/Tutorials/Workspace/Creating-A-Workspace.rst

@@ -17,7 +17,7 @@ Background
 ----------
 
 A workspace is a directory containing ROS 2 packages.
-Before using ROS 2, it’s necessary to source your the ROS 2 installation workspace in the terminal you plan to work in.
+Before using ROS 2, it’s necessary to source your ROS 2 installation workspace in the terminal you plan to work in.
 This makes ROS 2’s packages available for you to use in that terminal.
 
 You also have the option of sourcing an “overlay” – a secondary workspace where you can add new packages without interfering with the existing ROS 2 workspace that you're extending, or “underlay”.

source/Tutorials/Writing-A-Simple-Cpp-Service-And-Client.rst

@@ -163,7 +163,7 @@ The ``main`` function accomplishes the following, line by line:
 ~~~~~~~~~~~~~~~~~~
 
 The ``add_executable`` macro generates an executable you can run using ``ros2 run``.
-Add the following code block to create an executable named ``server``:
+Add the following code block to ``CMakeLists.txt`` to create an executable named ``server``:
 
 .. code-block:: console
 
@@ -308,15 +308,16 @@ After removing some unnecessary boilerplate from the automatically generated fil
 ^^^^^^^^^^^^^^^
 
 It's good practice to run ``rosdep`` in the root of your workspace (``dev_ws``) to check for missing dependencies before building:
+
 .. tabs::
 
-   .. group-tab:: Linux
+  .. group-tab:: Linux
 
-      .. code-block:: console
+    .. code-block:: console
 
-            sudo rosdep install -i --from-path src --rosdistro <distro> -y
+      sudo rosdep install -i --from-path src --rosdistro <distro> -y
 
-   .. group-tab:: macOS/Windows
+  .. group-tab:: macOS/Windows
 
       rosdep only runs on Linux, so you can skip ahead to next step.