fix(readme-template): add missing closing backtick (#1335)

Author: EagleoutIce

.changeset/silver-swans-wash.md

@@ -0,0 +1,5 @@
+---
+'create-spectacle': patch
+---
+
+Fix Missing Backtick in Readme-Template

packages/create-spectacle/src/templates/readme.ts

@@ -13,7 +13,7 @@ Made with ❤️ and [Spectacle](https://github.com/FormidableLabs/spectacle/).
 
 - Run \`yarn install\` (or \`npm install\` or \`pnpm install\`) to install dependencies.
 - Run \`yarn start\` (or \`npm start\` or \`pnpm start\`) to start the presentation.
-- Edit \`index.tsx to add your presentation content.
+- Edit \`index.tsx\` to add your presentation content.
 
 ## Building you presentation