Use consistent casing

extensions/typescript/src/features/completionItemProvider.ts

@@ -376,7 +376,7 @@ export default class TypeScriptCompletionItemProvider implements CompletionItemP
 			documentation.appendMarkdown('\n\n');
 		}
 
-		Previewer.addmarkdownDocumentation(documentation, detail.documentation, detail.tags);
+		Previewer.addMarkdownDocumentation(documentation, detail.documentation, detail.tags);
 		item.documentation = documentation;
 
 		if (detail.codeActions && detail.codeActions.length) {

extensions/typescript/src/utils/previewer.ts

@@ -49,11 +49,11 @@ export function markdownDocumentation(
 	tags: Proto.JSDocTagInfo[]
 ): MarkdownString {
 	const out = new MarkdownString();
-	addmarkdownDocumentation(out, documentation, tags);
+	addMarkdownDocumentation(out, documentation, tags);
 	return out;
 }
 
-export function addmarkdownDocumentation(
+export function addMarkdownDocumentation(
 	out: MarkdownString,
 	documentation: Proto.SymbolDisplayPart[],
 	tags: Proto.JSDocTagInfo[]