improved the taints and toleration

Update content/en/docs/concepts/scheduling-eviction/taint-and-toleration.md

Co-authored-by: ZSC <[email protected]>

Author: dipankardas011

content/en/docs/concepts/scheduling-eviction/taint-and-toleration.md

@@ -15,7 +15,7 @@ is a property of {{< glossary_tooltip text="Pods" term_id="pod" >}} that *attrac
 a set of {{< glossary_tooltip text="nodes" term_id="node" >}} (either as a preference or a
 hard requirement). _Taints_ are the opposite -- they allow a node to repel a set of pods.
 
-_Tolerations_ are applied to pods, if it matches the Taints in any node it is scheduled, but it does not guarantee as scheduler has other paramters to decide.
+_Tolerations_ are applied to pods. Tolerations allow the scheduler to schedule pods with matching taints. Tolerations allow scheduling but don't guarantee scheduling: the scheduler also [evaluates other parameters](https://kubernetes.io/docs/concepts/scheduling-eviction/pod-priority-preemption/) as part of its function.
 
 Taints and tolerations work together to ensure that pods are not scheduled
 onto inappropriate nodes. One or more taints are applied to a node; this