docs: update `full-text-search.md` (#447)

Ben Schlegel

2023-09-04 6ef4246cf186414d1b8ee868cfa9d24314f0bc0a

 quartz/plugins/transformers/syntax.ts

@@ -4,8 +4,13 @@
export const SyntaxHighlighting: QuartzTransformerPlugin = () => ({
  name: "SyntaxHighlighting",
  htmlPlugins() {
    return [[rehypePrettyCode, {
      theme: 'css-variables',
    } satisfies Partial<CodeOptions>]]
  }
    return [
      [
        rehypePrettyCode,
        {
          theme: "css-variables",
        } satisfies Partial<CodeOptions>,
      ],
    ]
  },
})