fix(operators): fixed parameters typo in operators component

Author: btroncone

src/app/operators/components/operator/operator.component.html

@@ -22,7 +22,7 @@ <h3 class="short-description" [innerHTML]="shortDescription"></h3>
   </app-operator-examples>
   <app-operator-parameters
     [operatorParameters]="parameters"
-    *ngIf="paramaters?.length">
+    *ngIf="parameters?.length">
   </app-operator-parameters>
   <app-operator-walkthrough
     class="margin-bottom-16"