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, 1 insertions, 1 deletions

diff --git a/documentation/ref-manual/devtool-reference.rst b/documentation/ref-manual/devtool-reference.rst
index 32e64d02a2..e167f58092 100644
--- a/documentation/ref-manual/devtool-reference.rst
+++ b/documentation/ref-manual/devtool-reference.rst
@@ -353,7 +353,7 @@ variables in package recipes.
       :yocto_git:`maintainers.inc </poky/tree/meta/conf/distro/include/maintainers.inc>`
       file.
 
-   -  If the recipe is using the :ref:`bitbake:bitbake-user-manual/bitbake-user-manual-fetching:git fetcher (\`\`git://\`\`)`
+   -  If the recipe is using the :ref:`bitbake-user-manual/bitbake-user-manual-fetching:git fetcher (\`\`git://\`\`)`
       rather than a tarball, the commit hash points to the commit that matches
       the recipe's latest version tag, or in the absence of suitable tags,
       to the latest commit (when :term:`UPSTREAM_CHECK_COMMITS` set to ``1``