Update description for no delay provisioning

Fix grammar and improve the explanation for the no delay provisioning
option.

Signed-off-by: Major Hayden <[email protected]>

src/main/resources/hudson/plugins/ec2/AmazonEC2Cloud/help-noDelayProvisioning.html

@@ -1,5 +1,44 @@
-By default Jenkins do estimate load to avoid over-provisioning of cloud nodes.
-With this option enabled, a new node is created on Amazon EC2 as soon as NodeProvisioner detects need for more agents.
-In worse scenarios, this will results in some extra nodes provisioned on EC2, which will be shortly terminated. EC2
-being billed by the second since 2017 this won't have a huge impact on infrastructure costs, while offering build nodes
-without unnecessary delays.
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+<div>
+    <p>
+        Jenkins avoids over-provisioning of cloud nodes by examining the
+        current load and deciding when more nodes are needed. Enable "No delay
+        provisioning" to create a new cloud node on Amazon EC2 as soon as the
+        NodeProvisioner detects a need for more agents.
+    </p>
+    <p>
+        <b>
+            This may cause Jenkins to create more cloud nodes than it needs to
+            serve the current jobs.
+        </b>
+    </p>
+    <p>
+        These nodes will be terminated if they remain idle longer than the
+        "idle termination time" setting. EC2 currently bills instances by the
+        second, so this option should not have a large impact on your AWS
+        bill. It will make cloud nodes available much more quickly for jobs
+        and should reduce delays.
+    </p>
+</div>