Updated broken links in README.md

Relevant issue: unicodeveloper/awesome-nextjs#179

Author: Mennaruuk

README.md

@@ -39,7 +39,7 @@
  * [Getting Started with Next.js — Setting Up Your App](https://labs.redantler.com/getting-started-with-next-js-article-one-a1d9780ea9e0#.863nl4wnq)
  * [Getting Started with Next.js — Bringing Data In](https://labs.redantler.com/getting-started-with-next-js-bringing-data-in-bf40558698e2#.twjv5xk5w)
  * [How to build a Next.js React Universal App](https://medium.com/cosmicjs/how-to-build-a-next-js-react-universal-app-e610a0bc2124#.b8ayt9f39)
- * [Next on Next.js](https://jsmantra.com/next-on-next-js-1a134505f346#.sf2f64u4r)
+ * [Next on Next.js](https://web.archive.org/web/20170202170122if_/https://jsmantra.com/next-on-next-js-1a134505f346#.bhihzecyc)
  * [Accept payments on your site with nextjs, stripe, and micro](https://hackernoon.com/accept-payments-on-your-site-with-nextjs-stripe-and-micro-371de95b22d5?source=activity---post_recommended)
  * [Next.js on Cloud Functions for Firebase with Firebase Hosting](https://medium.com/@jthegedus/next-js-on-cloud-functions-for-firebase-with-firebase-hosting-7911465298f2)
  * [Building a Blog With Next.js](https://timber.io/blog/building-a-blog-with-next-js)
@@ -54,7 +54,6 @@
  * [SEO in Next.js and Prismic](https://www.garymeehan.ie/blog/handling-seo-with-nextjs-and-prismic)
  * [SEO in Next.js with next-seo](https://www.garymeehan.ie/blog/seo-in-nextjs-with-next-seo)
  * [Next.js 7](https://nextjs.org/blog/next-7)
- * [Using Next.js with Github Pages](https://hipstersmoothie.com/blog/next-pages/)
  * [Create SSR Next.js websites using GraphQL with Postgres](https://blog.hasura.io/create-next-js-sites-using-graphql-on-postgres-199224ad1a39)
  * [Cooking a Deliveroo clone with Next.js (React), GraphQL, Strapi and Stripe - Setup (part 1/7)](https://blog.strapi.io/strapi-next-setup)
  * [Next.js E-commerce Tutorial: Quick Shopping Cart Integration](https://snipcart.com/blog/next-js-ecommerce-tutorial)
@@ -79,7 +78,6 @@
 * [nextjs-starter](https://github.com/pbteja1998/nextjs-starter) - An SEO Optimized Next.js 10 starter kit template with React 17 + Typescript + Tailwind CSS 2 + React Query 3 + (GitHub Auth + Passwordless Auth) using (NextAuth.js and Fauna DB), ESLint, Prettier, Pre-commit hook with Husky. Can have different layouts for different pages.
 * [RAN!](https://github.com/sly777/ran) - Production-ready boilerplate with support for GraphQL, SSR, Hot-reload, CSS-in-JS, caching, and more.
 * [Next Simple Blog](https://github.com/tscanlin/next-blog) - Simple Markdown based blog built with Next.js with static exports.
-* [Create-Next-App](https://open.segment.com/create-next-app) - Fork of Facebook's create-react-app to create a next application.
 * [phox](https://github.com/herschel666/phox) - Create a static photo blog.
 * [Next Express Bootstrap Boilerplate](https://github.com/MustansirZia/next-express-bootstrap-boilerplate) - Boilerplate for a full stack app built using Next, Express, react-bootstrap, SCSS and SSR with eslint.
 * [Next Blog Firestore](https://github.com/suevalov/next-blog-firestore) - Blog with simple CMS built with Next.js, Firebase Firestore, styled-components and mobx-state-tree.
@@ -97,7 +95,7 @@
 * [Oh My Fullstack](https://github.com/oh-my-c0de/oh-my-fullstack) - Full stack web application skeleton (Next.js, Redux, RxJS, Immutable, Express)
 * [Next-Postgres-With-Typescript](https://github.com/brandontle/next-postgres-with-typescript) - Forum-like fullstack web app with Next 7.0.2 + Sequelize 4/Postgres + Typescript + Redux + Passport Local Auth + Emotion
 * [Next.js with Express and Babel](https://github.com/pd-smith/next-express-babel) - An application skeleton for those who want to transpile their Express as well as their Next.js code using Babel.
-* [next-postgres-graphql](https://github.com/hasura/graphql-engine/tree/master/community/boilerplates/nextjs-postgres-graphql) - Create SSR Next.js websites using GraphQL with Postgres (Next.js, Postgres, GraphQL)
+* [next-postgres-graphql](https://github.com/hasura/graphql-engine/tree/master/community/sample-apps/nextjs-postgres-graphql) - Create SSR Next.js websites using GraphQL with Postgres (Next.js, Postgres, GraphQL)
 * [nextjs-mongodb-app](https://github.com/hoangvvo/nextjs-mongodb-app) - Full-fledged app made with Next.JS and MongoDB, with authentication and much more (Next.js 9, MongoDB)
 * [react-next-boilerplate](https://github.com/react-next-boilerplate/react-next-boilerplate) - :rocket: A basis for reducing the configuration of your projects with nextJS, best development practices and popular libraries in the developer community.
 * [The-Nextjs-starter](https://github.com/novellito/the-nextjs-starter) - typescript + redux + styled-components + react-testing-library + eslint + fontawesome
@@ -142,7 +140,6 @@
 * [CourseLit](https://github.com/codelit/courselit) - An open source alternative to Thinkific, Teachable etc.
 * [Feednext](https://github.com/feednext/feednext) - An open source social media application.
 * [NextJS GOT](https://github.com/auth0-blog/nextjs-got) - Simple Next.js application that showcases Game of Thrones Characters.
-* [Next Episode](https://github.com/timneutkens/next-episode) - Sample Next.js app showing movie episodes.
 * [Relate](https://github.com/RelateNow/relate) - Mindfulness community - React, GraphQL, Next.js.
 * [Next News](https://github.com/now-examples/next-news) - HackerNews written in Next.js.
 * [Password](https://github.com/dotcypress/password) - One password, right way.
@@ -162,7 +159,6 @@
 * [Cookie handler with server render](https://github.com/estrada9166/cookie-handler-next.js) - Cookie handler with server render, access the cookie before render.
 * [Gank](https://github.com/OrangeXC/gank) - A Next.js App use gank-api, mobx and antd
 * [Decoupled CMS example with GraphQL and Next.js](https://github.com/janit/decoupled-cms-nextjs-graphql)
-* [DS](https://github.com/divyenduz/ds) - Personal site manager.
 * [Mozilla VR Home](https://vr.mozilla.org/) - Mozilla VR Home
 * [Elton John's website](https://www.eltonjohn.com) - Elton John's Website
 * [IOTA's Data Market Place](https://data.iota.org/) - IOTA Market Place
@@ -171,15 +167,14 @@
 * [Docker Success Center](https://success.docker.com) - Docker Success Center
 * [Urteile & Gesetze](https://github.com/neo-search/urteile-gesetze-web) - German Legal Information System licensed under GPLv3.
 * [TikTok's HomePage](https://www.tiktok.com/) - TikTok's Home Page
-* [njt.now.sh](https://njt.now.sh) - npm jump to 🐸 (package navigation shortcuts you dreamed about). Partially statically-rendered, partially deployed as lambda. Automatically updated on each commit to the [github repo](https://github.com/kachkaev/njt), thanks to [Now integration](https://github.com/apps/now).
+* [njt.now.sh](https://njt.now.sh) - npm jump to 🐸 (package navigation shortcuts you dreamed about). Partially statically-rendered, partially deployed as lambda. Automatically updated on each commit to the [github repo](https://github.com/kachkaev/njt), thanks to Now integration.
 * [caseconverter.pro](https://caseconverter.pro) - A text case converter.
 * [Tottem](https://github.com/poulainv/tottem) - Bookmark manager on steroid built with NextJs / Auth0 / Apollo Tools / Prisma2
 * [Slow TV Map](https://slowtvmap.com) - A fun way to discover relaxing virtual experiences. Next.js + Chakra UI + MySQL hosted on Vercel.
 
 ## Books
 * [Hands On Next.js](https://www.honext.io/) - A practical fullstack book on universal (server) rendering for react applications.
 * [Next.js Quick Start Guide](https://www.packtpub.com/web-development/nextjs-quick-start-guide) - Create, build and deploy universal JavaScript applications using Next.js
-* [Next.js in Action](https://www.manning.com/books/next-js-in-action) - Your practical guide to building apps with the universal React framework.
 * [The Next.js Handbook](https://flaviocopes.com/page/nextjs-handbook/) - Build a frontend React application that transparently handles server-side rendering for you.
 
 ## Videos