manuals: simplify references to the BitBake User Manual

- Replacing
  :ref:`bitbake:bitbake-user-manual/...`
  by :ref:`bitbake-user-manual/...`

  Adding "bitbake:" as a prefix is not necessary
  as there is no naming conflict between the YP
  and the BitBake manuals (all documents are in
  "bitbake-user-manual/")

- Explaining the rules in the README file

- When necessary, fixing line length in the modified paragraphs.

(From yocto-docs rev: d80b31705450cfb98d217ea44ba2edace2d64095)

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

1 files changed, 4 insertions, 5 deletions

diff --git a/documentation/migration-guides/migration-2.2.rst b/documentation/migration-guides/migration-2.2.rst
index 2d4f4d603e..5435835102 100644
--- a/documentation/migration-guides/migration-2.2.rst
+++ b/documentation/migration-guides/migration-2.2.rst
@@ -121,11 +121,10 @@ compared to uClibc.
 ``${B}`` No Longer Default Working Directory for Tasks
 ------------------------------------------------------
 
-``${``\ :term:`B`\ ``}`` is no longer the default working
-directory for tasks. Consequently, any custom tasks you define now need
-to either have the
-``[``\ :ref:`dirs <bitbake:bitbake-user-manual/bitbake-user-manual-metadata:variable flags>`\ ``]`` flag
-set, or the task needs to change into the appropriate working directory
+``${``\ :term:`B`\ ``}`` is no longer the default working directory for tasks.
+Consequently, any custom tasks you define now need to either have the
+``[``\ :ref:`dirs <bitbake-user-manual/bitbake-user-manual-metadata:variable flags>`\ ``]``
+flag set, or the task needs to change into the appropriate working directory
 manually (e.g using ``cd`` for a shell task).
 
 .. note::