Changing the anchor link back to Line + Bar chart (#10213)

* Changing the anchor link back to Line + Bar chart

* Adding a closing tag

[ci skip]

docs/users-guide/05-visualizing-results.md

@@ -140,7 +140,8 @@ Another useful option for line, area, bar, and scatter charts is trend lines. If
 
 ![Trend lines](images/visualizations/trend-lines.png)
 
-#### Line Plus Bar charts
+#### Line + Bar charts <a name="line-plus-bar-charts"></a>
+
 Also called Combo Charts, the Line + Bar chart lets you combine bars and lines (or areas) on the same chart.
 
 ![Line + bar](images/visualizations/combo-chart.png)