Use string symbol kind for markdown symbols

extensions/markdown-language-features/src/features/documentSymbolProvider.ts

@@ -4,10 +4,10 @@
  *--------------------------------------------------------------------------------------------*/
 
 import * as vscode from 'vscode';
-
 import { MarkdownEngine } from '../markdownEngine';
 import { TableOfContentsProvider } from '../tableOfContentsProvider';
 
+
 export default class MDDocumentSymbolProvider implements vscode.DocumentSymbolProvider {
 
 	constructor(
@@ -17,7 +17,7 @@ export default class MDDocumentSymbolProvider implements vscode.DocumentSymbolPr
 	public async provideDocumentSymbols(document: vscode.TextDocument): Promise<vscode.SymbolInformation[]> {
 		const toc = await new TableOfContentsProvider(this.engine, document).getToc();
 		return toc.map(entry => {
-			return new vscode.SymbolInformation('#'.repeat(entry.level) + ' ' + entry.text, vscode.SymbolKind.Namespace, '', entry.location);
+			return new vscode.SymbolInformation('#'.repeat(entry.level) + ' ' + entry.text, vscode.SymbolKind.String, '', entry.location);
 		});
 	}
 }
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