Improve help message

src/main/resources/org/jenkinsci/plugins/vSphereCloudSlaveTemplate/help-instancesMin.html

@@ -1,16 +1,16 @@
 <div>
-    Number of instances to be provisioned beforehand.<br>
+    Number of VM instances to be provisioned beforehand.<br>
     This allows to speed up jobs execution by starting them immediately without waiting for a VM to get booted.<br>
     <dt>If set to 0:</dt>
     <dd>No VMs provisioned in advance.</dd>
     <dt>If number is bigger than 0:</dt>
-    <dd>Plugin will try to provision new nodes to meet the value.</dd>
-    <dt>If Run-Once retention strategy is used along with this option:</dt>
-    <dd>Busy nodes are counted as non reusable, so plugin will provision more VMs to meet the value.<br>
-        When maximum capacity is reached new VM will be added after previous VM is gone.</dd>
+    <dd>Plugin provisions new VMs to meet the value.</dd>
     <dt>If Keep-Until-Idle retention strategy is used along with this option:</dt>
-    <dd>Busy nodes are counted as reuseable, so plugin will not provision more nodes even if all of them are currently busy.</dd>
+    <dd>Busy VMs are counted as reuseable, so plugin will not provision more VMs even if all of them are currently busy.</dd>
+    <dt>If Run-Once retention strategy is used along with this option:</dt>
+    <dd>Busy VMs are counted as non reusable, so plugin will provision more VMs to meet the value.<br>
+        When at maximum capacity new VM will be added after an old VM is gone.</dd>
     <dt>If instances Min is bigger than instance Cap:</dt>
-    <dd>Plugin will provision max number of nodes specified in instance Cap (the smallest of cloud and template options).</dd>
+    <dd>Plugin will provision max number of VMs specified in instance Cap (the smallest of cloud and template options).</dd>
     Plugin checks number of running VMs once in 2 minutes.
 </div>