[FIXED JENKINS-35250] - Generalize the help message for patterns (#19)

src/main/webapp/help/help-pattern.html

@@ -24,8 +24,8 @@
 
 <div>
   <p>
-    The pattern is used to match project names. This means that the permissions
-    you are assigning to this role will only be valid for project having a name
-    matching this pattern.
+    The pattern is used to match Item names (jobs, nodes, slaves, etc.). 
+    This means that the permissions you are assigning to this role will only be valid for an item 
+    having a name matching this pattern.
   </p>
 </div>