Correct typos that reference a non-existing file There are references to odb_backends.h when the file is actually named odb_backend.h and in the sys folder.
diff --git a/include/git2/odb.h b/include/git2/odb.h
index b3ed270..b7dc0c5 100644
--- a/include/git2/odb.h
+++ b/include/git2/odb.h
@@ -488,7 +488,7 @@ GIT_EXTERN(git_otype) git_odb_object_type(git_odb_object *object);
* The backends are checked in relative ordering, based on the
* value of the `priority` parameter.
*
- * Read <odb_backends.h> for more information.
+ * Read <sys/odb_backend.h> for more information.
*
* @param odb database to add the backend to
* @param backend pointer to a git_odb_backend instance
@@ -509,7 +509,7 @@ GIT_EXTERN(int) git_odb_add_backend(git_odb *odb, git_odb_backend *backend, int
*
* Writing is disabled on alternate backends.
*
- * Read <odb_backends.h> for more information.
+ * Read <sys/odb_backend.h> for more information.
*
* @param odb database to add the backend to
* @param backend pointer to a git_odb_backend instance