docs(contributing): remove redundant backslashes (#4549)

Co-authored-by: Alexandr <qwerty541zxc@gmail.com>

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # Contributing to [github-readme-stats](https://github.com/anuraghazra/github-readme-stats)
 
-> [!IMPORTANT]\
+> [!IMPORTANT]
 > Please note that we are NOT participating in Hacktoberfest this year. As a small team, we cannot handle the increased volume of PRs and issues that the event brings. We appreciate your understanding.
 
 We love your input! We want to make contributing to this project as easy and transparent as possible, whether it's:
@@ -41,14 +41,14 @@ _(make sure you already have a [Vercel](https://vercel.com/) account)_
 6.  Create a `.env` file in the root and add the following line `NODE_ENV=development`, this will disable caching for local development.
 7.  The cards will then be available from this local endpoint (i.e. `http://localhost:3000/api?username=anuraghazra`).
 
-> [!NOTE]\
+> [!NOTE]
 > You can debug the package code in [Vscode](https://code.visualstudio.com/) by using the [Node.js: Attach to process](https://code.visualstudio.com/docs/nodejs/nodejs-debugging#_setting-up-an-attach-configuration) debug option. You can also debug any tests using the [VSCode Jest extension](https://marketplace.visualstudio.com/items?itemName=Orta.vscode-jest). For more information, see https://github.com/jest-community/vscode-jest/issues/912.
 
 ## Themes Contribution
 
 We're currently paused addition of new themes to decrease maintenance efforts. All pull requests related to new themes will be closed.
 
-> [!NOTE]\
+> [!NOTE]
 > If you are considering contributing your theme just because you are using it personally, then instead of adding it to our theme collection, you can use card [customization options](./readme.md#customization).
 
 ## Translations Contribution