Add links to ElectronJS on Front End Roadmap (#1187)

* Add Bootstrap CSS content

* Add Bulma CSS content

* Add Prettier content

* Add Vite content

* Add GitHub content

* Add GitHub content

* Add GitHub content

* Add GitLab content at backend roadmap

* Add Git content on Backend roadmap

* Add HTTPS content on Backend roadmap

* Add Version Control System description

* Add Jekyll content on Frontend roadmap

* Add VuePress content on Frontend roadmap

* Revert "Add VuePress content on Frontend roadmap"

This reverts commit 05625604c2.

* Add Gatsbyjs content on Frontend roadmap

* Update content/roadmaps/100-frontend/content/120-static-site-generators/101-gatsbyjs.md

* Add content for Gridsome

* Add content for NuxtJS

* Revert "Add content for NuxtJS"

This reverts commit bd533a6ba9.

* Add content for Nuxt.js in Front End roadmap

* Add links for ElectronJS in Front End Roadmap

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/100-frontend/content/122-desktop-applications/100-electron.md

@@ -1,3 +1,7 @@
 # Electron
 
-Electron allows you to build cross-platform desktop applications with HTML, CSS, and Javascript/Typescript. It uses Chromium and Node.js, so essentially it is a "Browser" like application that is compatbile with Mac, Windows, and Linux. 
+Electron allows you to build cross-platform desktop applications with HTML, CSS, and Javascript/Typescript. It uses Chromium and Node.js, so essentially it is a "Browser" like application that is compatbile with Mac, Windows, and Linux.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='blue' badgeText='Official Website' href='https://www.electronjs.org/'>Electron Website</BadgeLink>
+<BadgeLink colorScheme='blue' badgeText='Docs' href='https://www.electronjs.org/docs/latest/'>Electron Docs</BadgeLink>