Fix typo in general.c

examples/general.c

@@ -708,7 +708,7 @@ static void reference_listing(git_repository *repo)
 /**
  * ### Config Files
  *
- * The [config API][config] allows you to list and updatee config values
+ * The [config API][config] allows you to list and update config values
  * in any of the accessible config file locations (system, global, local).
  *
  * [config]: http://libgit2.github.com/libgit2/#HEAD/group/config