Prettify markdown in docs in v8.1.x (#37647)

docs/sources/developers/plugins/error-handling.md

@@ -16,7 +16,7 @@ Allow the user to learn your plugin in small steps. Provide a useful default con
 For example, by selecting the first field of an expected type, the panel can display a visualization without any user configuration. If a user explicitly selects a field, then use that one. Otherwise, default to the first field of type `string`:
 
 ```ts
-const numberField = frame.fields.find(field =>
+const numberField = frame.fields.find((field) =>
   options.numberFieldName ? field.name === options.numberFieldName : field.type === FieldType.number
 );
 ```
@@ -54,10 +54,10 @@ Users have full freedom when they create data source queries for panels. If your
 
 ```ts
 if (!numberField) {
-  throw new Error('Query result is missing a number field')
+  throw new Error('Query result is missing a number field');
 }
 
 if (frame.length === 0) {
-  throw new Error('Query returned an empty result')
+  throw new Error('Query returned an empty result');
 }
 ```