Grammar fix: is->are

diff --git a/README.md b/README.md
index 617a54a4aaee6af99d7de2aa0296c06dc549ff4a..46a6a0fdf373a3fd208eb1a6db97b23896acb125 100644 (file)
--- a/README.md
+++ b/README.md
@@ -54,6 +54,6 @@ syncer is free software: see the file COPYING for copying conditions.
 `SRC_SIZE || BLK_SIZE || HASH0 || HASH1 || ...`
 
 SRC_SIZE contains size of the source, when it was firstly read. BLK_SIZE
-is the blocksize used. Both is 64-bit big-endian unsigned integers. If
+is the blocksize used. Both are 64-bit big-endian unsigned integers. If
 either size or blocksize differs, then syncer will deny using that
 statefile as a precaution. HASHx is BLAKE2b-512 hash output, 64 bytes.