doc: fix typos in CONTRIBUTING.md
authorWill Thompson <will@willthompson.co.uk>
Tue, 7 Aug 2018 14:16:46 +0000 (14:16 +0000)
committerWill Thompson <will@willthompson.co.uk>
Tue, 7 Aug 2018 14:19:01 +0000 (15:19 +0100)
commit103dc42b5ec134362db9b6dfb32edf10344e6769
treed33fc552a89b843f430449cb63b013c50868b8ff
parent8798fa7fdfcb219d85e5f76b24f1de2dc75f688f
doc: fix typos in CONTRIBUTING.md

* Cover letters are no more; presumably the changes since the previous
  revision should be summarised in the MR
* Code should be indented with tabs, not implemented with tabs

Signed-off-by: Will Thompson <will@willthompson.co.uk>
CONTRIBUTING.md