Updated README.md.

README.md

@@ -51,13 +51,14 @@ input length is not known in advance.
 ```
 
 The same incremental approach can be used for file or blob hashing, at a given
-read block size. Note that this approach is not the same as "streamed" hashing
-since this approach implicitly encodes the length of each hashed value.
-
-If you need a streamed file hashing that is independent of read block size,
-you may consider using [PRVHASH64S](https://github.com/avaneev/prvhash) which
-provides 8.4 GB/s hashing throughput on Ryzen 3700X, and is able to produce a
-hash value of any required bit-size.
+chunk size (which may be e.g., 2048 bytes, except the last chunk). Note that
+this approach is not the same as "streamed" hashing since this approach
+implicitly encodes the length of each independent value.
+
+If you need a streamed file hashing that is independent of chunk (read block)
+size, you may consider using [PRVHASH64S](https://github.com/avaneev/prvhash)
+which provides 8.4 GB/s hashing throughput on Ryzen 3700X, and is able to
+produce a hash value of any required bit-size.
 
 ## Ports ##