Added MRR title

Author: mikecentola

src/webviews/apps/calc/calc.html

@@ -69,7 +69,9 @@ <h3>Chip Load</h3>
             </vscode-panel-view>
             <vscode-panel-view id="view-3">
                 <section class="row">
-                    <section id="mrr" class="calculator">                        
+                    <section id="mrr" class="calculator">
+                        <h3>Metal Removal Rate</h3>
+                        <vscode-divider role="separator"></vscode-divider>
                         <vscode-text-field id="mrr-ap" placeholder="Axial Depth of Cut" size="15">A<sub>p</sub> - Axial Depth of Cut</vscode-text-field>
                         <vscode-text-field id="mrr-ae" placeholder="Radial Depth of Cut" size="15">A<sub>e</sub> - Radial Depth of Cut</vscode-text-field>
                         <vscode-text-field id="mrr-fr" placeholder="Feedrate" size="15">Feedrate</vscode-text-field>