dev-manual: various pedantic nitpickery

Some minor grammatical and structure tweaks.

(From yocto-docs rev: 505f9b21898475746d401c8ab79b95f3dc4d02e7)

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Reviewed-by: Quentin Schulz <foss@0leil.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/dev-manual/intro.rst

@@ -7,16 +7,16 @@ The Yocto Project Development Tasks Manual
 Welcome
 =======
 
-Welcome to the Yocto Project Development Tasks Manual! This manual
+Welcome to the Yocto Project Development Tasks Manual. This manual
 provides relevant procedures necessary for developing in the Yocto
 Project environment (i.e. developing embedded Linux images and
-user-space applications that run on targeted devices). The manual groups
+user-space applications that run on targeted devices). This manual groups
 related procedures into higher-level sections. Procedures can consist of
 high-level steps or low-level steps depending on the topic.
 
 This manual provides the following:
 
--  Procedures that help you get going with the Yocto Project. For
+-  Procedures that help you get going with the Yocto Project; for
    example, procedures that show you how to set up a build host and work
    with the Yocto Project source repositories.
 
@@ -24,25 +24,25 @@ This manual provides the following:
    Changes can be improvements, new features, or bug fixes.
 
 -  Procedures related to "everyday" tasks you perform while developing
-   images and applications using the Yocto Project. For example,
-   procedures to create a layer, customize an image, write a new recipe,
+   images and applications using the Yocto Project, such as
+   creating a new layer, customizing an image, writing a new recipe,
    and so forth.
 
 This manual does not provide the following:
 
--  Redundant Step-by-step Instructions: For example, the
+-  Redundant step-by-step instructions: For example, the
    :doc:`/sdk-manual/index` manual contains detailed
    instructions on how to install an SDK, which is used to develop
    applications for target hardware.
 
--  Reference or Conceptual Material: This type of material resides in an
-   appropriate reference manual. For example, system variables are
+-  Reference or conceptual material: This type of material resides in an
+   appropriate reference manual. As an example, system variables are
    documented in the :doc:`/ref-manual/index`.
 
--  Detailed Public Information Not Specific to the Yocto Project: For
-   example, exhaustive information on how to use the Source Control
-   Manager Git is better covered with Internet searches and official Git
-   Documentation than through the Yocto Project documentation.
+-  Detailed public information not specific to the Yocto Project: For
+   example, exhaustive information on how to use the Git version
+   control system is better covered with Internet searches and official Git
+   documentation than through the Yocto Project documentation.
 
 Other Information
 =================