fix: trim

Author: technote-space

__tests__/fixtures/readme-with-weird-headers.md

@@ -15,5 +15,5 @@ Out of date
 
 <!-- tocstop -->
 
-## hasOwnProperty
+## hasOwnProperty 
 ## something else

src/lib/transform.ts

@@ -31,7 +31,7 @@ const addAnchor           = (mode: string | undefined, moduleName: string | unde
 
 // eslint-disable-next-line no-magic-numbers
 const shouldEscape = (header: TxtNode): boolean => /^#+\s+/.test(header.raw) && !/\s+#+$/.test(header.raw) && header.children.length === 1 && header.children[0].type === md.Syntax.Str;
-const escapeHeader = (header: TxtNode): TxtNode => md.parse(header.raw.replace(/^#+\s+/, '').replace('#', '#').replace('#', '#').replace(']', ']').replace('[', '['));
+const escapeHeader = (header: TxtNode): TxtNode => md.parse(header.raw.replace(/^#+\s+/, '').replace('#', '#').replace('#', '#').replace(']', ']').replace('[', '[').trim());
 
 export const getMarkdownHeaders = (lines: Array<string>, maxHeaderLevel: number | undefined): Array<Header> => {
   const extractText = (header: TxtNode): string => {