[elpa] externals/osm updated (f018af460d -> 231ffc4b77)

[ELPA Syncer]

elpasync pushed a change to branch externals/osm.

      from  f018af460d Update map servers
       new  5f30199ad1 osm: Update tile providers
       new  231ffc4b77 Extend docstring


Summary of changes:
 README.org |  2 --
 osm.el     | 55 +++++++++++++++----------------------------------------
 2 files changed, 15 insertions(+), 42 deletions(-)