Improve docs radial linear grid (#10518)

* make link work in github itself

* fix dead link on reload or new tab

* document the props for radial grid

* remove extra chart and space

docs/axes/radial/linear.md

@@ -18,7 +18,25 @@ Namespace: `options.scales[scaleId]`
 | `pointLabels` | `object` | | Point label configuration. [more...](#point-label-options)
 | `startAngle` | `number` | `0` | Starting angle of the scale. In degrees, 0 is at top.
 
-!!!include(axes/_common.md)!!!
+### Common options to all axes
+
+Namespace: `options.scales[scaleId]`
+
+| Name | Type | Default | Description
+| ---- | ---- | ------- | -----------
+| `type` | `string` | | Type of scale being employed. Custom scales can be created and registered with a string key. This allows changing the type of an axis for a chart.
+| `alignToPixels` | `boolean` | `false` | Align pixel values to device pixels.
+| `backgroundColor` | [`Color`](/general/colors.md) | | Background color of the scale area.
+| `display` | `boolean`\|`string` | `true` | Controls the axis global visibility (visible when `true`, hidden when `false`). When `display: 'auto'`, the axis is visible only if at least one associated dataset is visible.
+| `grid` | `object` | | Grid line configuration. [more...](#grid-line-configuration)
+| `min` | `number` | | User defined minimum number for the scale, overrides minimum value from data. [more...](/axes/index.md#axis-range-settings)
+| `max` | `number` | | User defined maximum number for the scale, overrides maximum value from data. [more...](/axes/index.md#axis-range-settings)
+| `reverse` | `boolean` | `false` | Reverse the scale.
+| `stacked` | `boolean`\|`string` | `false` | Should the data be stacked. [more...](/axes/index.md#stacking)
+| `suggestedMax` | `number` | | Adjustment used when calculating the maximum data value. [more...](/axes/index.md#axis-range-settings)
+| `suggestedMin` | `number` | | Adjustment used when calculating the minimum data value. [more...](/axes/index.md#axis-range-settings)
+| `ticks` | `object` | | Tick configuration. [more...](/axes/index.md#tick-configuration)
+| `weight` | `number` | `0` | The weight used to sort the axis. Higher weights are further away from the chart area.
 
 ## Tick Configuration
 
@@ -38,6 +56,21 @@ Namespace: `options.scales[scaleId].ticks`
 
 The scriptable context is described in [Options](../../general/options.md#tick) section.
 
+## Grid Line Configuration
+
+Namespace: `options.scales[scaleId].grid`, it defines options for the grid lines of the axis.
+
+| Name | Type | Scriptable | Indexable | Default | Description
+| ---- | ---- | :-------------------------------: | :-----------------------------: | ------- | -----------
+| `borderDash` | `number[]` | | | `[]` | Length and spacing of dashes on grid lines. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash).
+| `borderDashOffset` | `number` | Yes | | `0.0` | Offset for line dashes. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineDashOffset).
+| `circular` | `boolean` | | | `false` | If true, gridlines are circular (on radar and polar area charts only).
+| `color` | [`Color`](../general/colors.md)  | Yes | Yes | `Chart.defaults.borderColor` | The color of the grid lines. If specified as an array, the first color applies to the first grid line, the second to the second grid line, and so on.
+| `display` | `boolean` | | | `true` | If false, do not display grid lines for this axis.
+| `lineWidth` | `number` | Yes | Yes | `1` | Stroke width of grid lines.
+
+The scriptable context is described in [Options](../general/options.md#tick) section.
+
 ## Axis Range Settings
 
 Given the number of axis range settings, it is important to understand how they all interact with each other.

docs/axes/styling.md

@@ -12,7 +12,7 @@ Namespace: `options.scales[scaleId].grid`, it defines options for the grid lines
 | `borderWidth` | `number` | | | `1` | The width of the border line.
 | `borderDash` | `number[]` | Yes | | `[]` | Length and spacing of dashes on grid lines. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash).
 | `borderDashOffset` | `number` | Yes | | `0.0` | Offset for line dashes. See [MDN](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineDashOffset).
-| `circular` | `boolean` | | | `false` | If true, gridlines are circular (on radar chart only).
+| `circular` | `boolean` | | | `false` | If true, gridlines are circular (on radar and polar area charts only).
 | `color` | [`Color`](../general/colors.md)  | Yes | Yes | `Chart.defaults.borderColor` | The color of the grid lines. If specified as an array, the first color applies to the first grid line, the second to the second grid line, and so on.
 | `display` | `boolean` | | | `true` | If false, do not display grid lines for this axis.
 | `drawBorder` | `boolean` | | | `true` | If true, draw a border at the edge between the axis and the chart area.