according to "sources", preferably is correct spelling

diff --git a/contributing.mdwn b/contributing.mdwn
index 98dd62955e315284effbd766d625365ef19233bc..cc0d90911c26bcddd25cca352c7d70e9982d0999 100644 (file)
--- a/contributing.mdwn
+++ b/contributing.mdwn
@@ -87,7 +87,7 @@ at the end, after a line containing "---".
 
 Notmuch has a test suite with fairly good coverage. At the very least, `make
 test` must pass after your changes. Therefore you must amend the tests if you
 
 Notmuch has a test suite with fairly good coverage. At the very least, `make
 test` must pass after your changes. Therefore you must amend the tests if you

-make functional changes that have existing test coverage. Preferrably, you
+make functional changes that have existing test coverage. Preferably, you

 should add new tests for any new functionality, and it helps in getting your
 changes accepted.
 
 should add new tests for any new functionality, and it helps in getting your
 changes accepted.
 


@@ -207,7 +207,7 @@ people to review your patches if you review theirs.
 
 ## Report bugs
 
 
 ## Report bugs
 

-Send bug reports to the Notmuch mailing list. Preferrably prefix the
+Send bug reports to the Notmuch mailing list. Preferably prefix the

 subject line with "BUG:" or similar. Tag the message as a bug in
 [nmbug](http://notmuchmail.org/nmbug/).
 
 subject line with "BUG:" or similar. Tag the message as a bug in
 [nmbug](http://notmuchmail.org/nmbug/).