manuals: improve the width of diagrams

Better for EPUB output in particular
- Make some diagrams wider when necessary
- Remove ":align: center" when we have ":width: 100%"
- Update the standards.md files to mention this

(From yocto-docs rev: 848ba7bd8984cc3f4bf6b818259865011cde0476)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/documentation/sdk-manual/extensible.rst b/documentation/sdk-manual/extensible.rst
index c5970f74fa..6bb262273d 100644
--- a/documentation/sdk-manual/extensible.rst
+++ b/documentation/sdk-manual/extensible.rst
@@ -233,7 +233,7 @@ shows common development flows you would use with the ``devtool add``
 command:
 
 .. image:: figures/sdk-devtool-add-flow.png
-   :align: center
+   :width: 100%
 
 1. *Generating the New Recipe*: The top part of the flow shows three
    scenarios by which you could use ``devtool add`` to generate a recipe
@@ -401,7 +401,7 @@ diagram shows common development flows for the ``devtool modify``
 command:
 
 .. image:: figures/sdk-devtool-modify-flow.png
-   :align: center
+   :width: 100%
 
 1. *Preparing to Modify the Code*: The top part of the flow shows three
    scenarios by which you could use ``devtool modify`` to prepare to
@@ -620,7 +620,7 @@ The following diagram shows the common development flow used with the
 ``devtool upgrade`` command:
 
 .. image:: figures/sdk-devtool-upgrade-flow.png
-   :align: center
+   :width: 100%
 
 1. *Initiate the Upgrade*: The top part of the flow shows the typical
    scenario by which you use the ``devtool upgrade`` command. The