Correcr readme doc

Author: Steven Diviney

README.md

@@ -384,7 +384,7 @@ Kafka.new(partitioner: partitioner, ...)
 
 ##### Supported partitioning schemes
 
-In order for semantic partitioning to work a `partition_key` must map to the same partition number every time. The general approach, and the one used by this library, is to hash the key and mod it by the number of partitions. There are many different algorithms to calculate a hash. By default `crc32` is used. `murmur2` is also supported for compatibility with Java based Kafka producers.
+In order for semantic partitioning to work a `partition_key` must map to the same partition number every time. The general approach, and the one used by this library, is to hash the key and mod it by the number of partitions. There are many different algorithms that can be used to calculate a hash. By default `crc32` is used. `murmur2` is also supported for compatibility with Java based Kafka producers.
 
 To use `murmur2` hashing pass it as an argument to `Partitioner`. For example: