Small typo fix in README (#204)

Signed-off-by: cpaika <paika.christopher@gmail.com>

README.md

@@ -519,7 +519,7 @@ The deployment type can be specified with the `REDIS_TYPE` / `REDIS_PERSECOND_TY
 
 ## Pipelining
 
-By default, for each request, ratelimit will pick up a connection from pool, wirte multiple redis commands in a single write then reads their responses in a single read. This reduces network delay.
+By default, for each request, ratelimit will pick up a connection from pool, write multiple redis commands in a single write then reads their responses in a single read. This reduces network delay.
 
 For high throughput scenarios, ratelimit also support [implicit pipelining](https://github.com/mediocregopher/radix/blob/v3.5.1/pool.go#L238) . It can be configured using the following environment variables: