chore: Fixed misprint in GetMetricSpecForScaling section (kedacore#5835)

Signed-off-by: Yury Akudovich <[email protected]>
Signed-off-by: uucloud <[email protected]>

CREATE-NEW-SCALER.md

@@ -63,7 +63,7 @@ KEDA works in conjunction with Kubernetes Horizontal Pod Autoscaler (HPA). When
 The return type of this function is `MetricSpec`, but in KEDA's case we will mostly write External metrics. So the property that should be filled is `ExternalMetricSource`, where the:
 - `MetricName`: the name of our metric we are returning in this scaler. The name should be unique, to allow setting multiple (even the same type) Triggers in one ScaledObject, but each function call should return the same name.
 - `TargetValue`: is the value of the metric we want to reach at all times at all costs. As long as the current metric doesn't match TargetValue, HPA will increase the number of the pods until it reaches the maximum number of pods allowed to scale to.
-- `TargetAverageValue`: the value of the metric for which we require one pod to handle. e.g. if we have a scaler based on the length of a message queue, and we specificy 10 for `TargetAverageValue`, we are saying that each pod will handle 10 messages. So if the length of the queue becomes 30, we expect that we have 3 pods in our cluster. (`TargetAverage` and `TargetValue` are mutually exclusive).
+- `TargetAverageValue`: the value of the metric for which we require one pod to handle. e.g. if we have a scaler based on the length of a message queue, and we specificy 10 for `TargetAverageValue`, we are saying that each pod will handle 10 messages. So if the length of the queue becomes 30, we expect that we have 3 pods in our cluster. (`TargetAverageValue` and `TargetValue` are mutually exclusive).
 
 All scalers receive a parameter named `triggerIndex` as part of `ScalerConfig`. This value is the index of the current scaler in a ScaledObject. All metric names have to start with `sX-` (where `X` is `triggerIndex`). This convention makes the metric name unique in the ScaledObject and brings the option to have more than 1 "similar metric name" defined in a ScaledObject.