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, 2 insertions, 2 deletions

diff --git a/documentation/migration-guides/migration-4.0.rst b/documentation/migration-guides/migration-4.0.rst
index 3106498404..2aa9145ef8 100644
--- a/documentation/migration-guides/migration-4.0.rst
+++ b/documentation/migration-guides/migration-4.0.rst
@@ -207,8 +207,8 @@ For the ``append`` plus ``+=`` (and ``prepend`` plus ``=+``) combinations,
 the content should be prefixed (respectively suffixed) by a space to maintain
 the same behavior.  You can learn more about override style syntax operators
 (``append``, ``prepend`` and ``remove``) in the BitBake documentation:
-:ref:`bitbake:bitbake-user-manual/bitbake-user-manual-metadata:appending and prepending (override style syntax)`
-and :ref:`bitbake:bitbake-user-manual/bitbake-user-manual-metadata:removal (override style syntax)`.
+:ref:`bitbake-user-manual/bitbake-user-manual-metadata:appending and prepending (override style syntax)`
+and :ref:`bitbake-user-manual/bitbake-user-manual-metadata:removal (override style syntax)`.
 
 Miscellaneous changes
 ~~~~~~~~~~~~~~~~~~~~~