devel: Fix typos spotted after codespell upgrade

docs/devel/contributing/git-style-guide.rst

@@ -12,7 +12,7 @@ Good commit messages are essentials in a project as large as Software Heritage.
 They are crucial to those who will review your changes and important to anyone else
 who will interact with the codebase at a later time. This includes your future self!
 
-Make sure to follow the recommandations from `How to write a Git
+Make sure to follow the recommendations from `How to write a Git
 commit message <http://chris.beams.io/posts/git-commit/>`_
 
 Closing or referencing issues

docs/devel/images/lister-loader-scheduling-architecture.svg

@@ -2209,7 +2209,7 @@
      id="g16490"
      transform="translate(-210.0923,-72.740013)">
     <title
-       id="title31653">The loader Celery worker execute loader Celery tasks, retrieveing software artifacts from the origin and inserting them in the Storage, including OriginVisit and OriginVisitStatus storage objects.</title>
+       id="title31653">The loader Celery worker execute loader Celery tasks, retrieving software artifacts from the origin and inserting them in the Storage, including OriginVisit and OriginVisitStatus storage objects.</title>
     <g
        transform="translate(4.8328727,82.923866)"
        id="g25463">

docs/devel/journal.rst

@@ -420,7 +420,7 @@ Message format:
 - ``visit`` [int] number of the visit for this ``origin`` this status concerns
 - ``date`` [timestamp] date of the visit status update
 - ``status`` [string] status (can be "created", "ongoing", "full" or "partial"),
-- ``snapshot`` [bytes] identifier of the :py:class:`swh.model.model.Snaphot` this
+- ``snapshot`` [bytes] identifier of the :py:class:`swh.model.model.Snapshot` this
   visit resulted in (if ``status`` is "full" or "partial")
 - ``metadata``: deprecated