typo and reference to wrong parameter (I think) (#1366)

docs/Timeouts.md

@@ -5,7 +5,7 @@ Similarly, verify you are not getting CPU bound on client or on the server box w
 
 Are you experiencing "thread theft" of the reader?
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-The parameter “`qs`” in the error message tells you the state of the reader; if this is frquently reporting `CompletePendingMessage*`,
+The parameter “`rs`” in the error message tells you the state of the reader; if this is frequently reporting `CompletePendingMessage*`,
 it is possible that the reader loop has been hijacked; see [Thread Theft](ThreadTheft) for specific guidance.
 
 Are there commands taking a long time to process on the redis-server?