Mention ASK and TRYAGAIN for replicas in READONLY command manual

Signed-off-by: Viktor Söderqvist <[email protected]>
valkey-io · Jun 1, 2024 · 4cd52e0 · 4cd52e0
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commit 4cd52e0
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diff --git a/commands/readonly.md b/commands/readonly.md
@@ -13,3 +13,4 @@ master node. This may happen because:
 
 1. The client sent a command about hash slots never served by the master of this replica.
 2. The cluster was reconfigured (for example resharded) and the replica is no longer able to serve commands for a given hash slot.
+3. A slot migration is ongoing. In this case the replica can return an ASK redirect or a TRYAGAIN error reply.