branch master updated (7d580f1c2c -> 8d472e9314)

[guix-commits]

civodul pushed a change to branch master
in repository guix.

    from 7d580f1c2c gnu: welle-io: Update to 2.4.
     new 7f6dd3be3d gexp: 'computed-file' always uses a native Guile.
     new 0055a803e2 system: Add helper file-system-mount-point-predicate.
     new cfa6fdc54c doc: Clarify the Swap Space examples, and include an helper 
example.
     new 8d472e9314 doc: Move build commands to @example for clarity.

The 4 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 doc/contributing.texi       | 45 ++++++++++++++++++++++++++++++++-------------
 doc/guix.texi               | 33 +++++++++++++++++++++++++--------
 gnu/system/file-systems.scm |  7 +++++++
 guix/gexp.scm               |  2 +-
 tests/gexp.scm              | 22 ++++++++++++++++++++++
 5 files changed, 87 insertions(+), 22 deletions(-)