docs(explorer): Fixed small typo with extra } in explorer.md (#541)

Thomas

2023-10-18 86d16b12a224d125ba469f91e885eedf97a9dfe8

 quartz/plugins/transformers/index.ts

@@ -8,3 +8,4 @@
export { OxHugoFlavouredMarkdown } from "./oxhugofm"
export { SyntaxHighlighting } from "./syntax"
export { TableOfContents } from "./toc"
export { HardLineBreaks } from "./linebreaks"