Docs: More panel options updates for Grafana 8.0 (#35212)

* Update gauge-panel.md

* Update heatmap.md

* Update news-panel.md

* Update pie-chart-panel.md

docs/sources/panels/visualizations/gauge-panel.md

@@ -1,5 +1,5 @@
 +++
-title = "Gauge panel"
+title = "Gauge"
 description = "Gauge panel docs"
 keywords = ["grafana", "gauge", "gauge panel"]
 aliases = ["/docs/grafana/latest/features/panels/gauge/"]

docs/sources/panels/visualizations/heatmap.md

@@ -1,12 +1,12 @@
 +++
-title = "Heatmap panel"
+title = "Heatmap"
 description = "Heatmap visualization documentation"
 keywords = ["grafana", "heatmap", "panel", "documentation"]
 aliases =["/docs/grafana/latest/features/panels/heatmap/"]
 weight = 600
 +++
 
-# Heatmap panel
+# Heatmap
 
 The Heatmap panel visualization allows you to view histograms over time. For more information about histograms, refer to [Introduction to histograms and heatmaps]({{< relref "../../basics/intro-histograms.md" >}}).
 

docs/sources/panels/visualizations/news-panel.md

@@ -1,11 +1,11 @@
 +++
-title = "News panel"
+title = "News"
 keywords = ["grafana", "news", "documentation", "panels", "news panel"]
 weight = 800
 +++
 
-## News panel
+## News
 
-This panel displays an RSS feed. By default, it displays articles from the Grafana Labs blog.
+This panel visualization displays an RSS feed. By default, it displays articles from the Grafana Labs blog.
 
 Enter the URL of an RSS in the URL field in the Display section. This panel type does not accept any other queries.

docs/sources/panels/visualizations/pie-chart-panel.md

@@ -1,26 +1,18 @@
 +++
-title = "Pie chart panel"
+title = "Pie chart"
 keywords = ["grafana", "pie chart"]
 weight = 850
 +++
 
-# Pie chart panel
+# Pie chart
 
 The pie chart displays reduced series, or values in a series, from one or more queries, as they relate to each other, in the form of slices of a pie. The arc length, area and central angle of a slice are all proportional to the slices value, as it relates to the sum of all values. This type of chart is best used when you want a quick comparison of a small set of values in an aesthetically pleasing form.
 
 ![Pie chart panel](/static/img/docs/pie-chart-panel/pie-chart-panel-7-5.png)
 
-## Data and field options
+## Value options
 
-Pie chart visualizations allow you to apply:
-
-- [Data transformations]({{< relref "../transformations/_index.md" >}})
-- [Field overrides]({{< relref "../field-overrides.md" >}})
-- [Thresholds]({{< relref "../thresholds.md" >}})
-
-## Display options
-
-Use the following options to refine your visualization:
+Use the following options to refine the value in your visualization.
 
 ### Show
 
@@ -45,15 +37,19 @@ Select which field or fields to display in the visualization. Each field name is
 - **All fields -** All fields that are not removed by transformations.
 - **Time -** All fields with time values.
 
+## Pie chart options
+
+Use these options to refine how your visualization looks.
+
 ### Pie chart type
 
 Select the pie chart display style.
 
-#### Pie
+### Pie
 
 ![Pie type chart](/static/img/docs/pie-chart-panel/pie-type-chart-7-5.png)
 
-#### Donut
+### Donut
 
 ![Donut type chart](/static/img/docs/pie-chart-panel/donut-type-chart-7-5.png)