Update content for streams and taking input (#2272)

content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/102-taking-input/100-process-stdin.md

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-# Process stdin
+# Process stdin
+
+The process.stdin is a standard Readable stream which listens for user input and is accessible via the process module. It uses on() function to listen for input events.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+
+<BadgeLink colorScheme='blue' badgeText='Official Website' href='https://nodejs.org/api/process.html#processstdin'>Official Documentation</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.geeksforgeeks.org/node-js-process-stdin-property'>Node.js process.stdin Property</BadgeLink>

content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/102-taking-input/101-prompts.md

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-# Prompts
+# Prompts
+
+Prompts is a higher level and user friendly interface built on top of Node.js's inbuilt `Readline` module. It supports different type of prompts such as text, password, autocomplete, date, etc. It is an interactive module and comes with inbuilt validation support.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+
+<BadgeLink colorScheme='blue' badgeText='Official Website' href='https://www.npmjs.com/package/prompts'>Official Documentation</BadgeLink>

content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/102-taking-input/102-inquirer.md

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-# Inquirer
+# Inquirer
+
+Inquirer.js is a collection of common interactive command line interfaces for taking inputs from user. It is promise based and supports chaining series of prompt questions together.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+
+<BadgeLink colorScheme='blue' badgeText='Official Website' href='https://www.npmjs.com/package/inquirer'>Official Documentation</BadgeLink>
+<BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=0xjfkl9nODQ'>How to make a CLI in Node.js with Inquirer</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.digitalocean.com/community/tutorials/nodejs-interactive-command-line-prompts'>How To Create Interactive Command-line Prompts with Inquirer.js</BadgeLink>

content/roadmaps/107-nodejs/content/115-nodejs-streams.md

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-# Nodejs streams
+# Nodejs streams
+
+Streams are a type of data handling methods and are used to read, write or transform chunks of data piece by piece without keeping it in memory all at once. There are four types of streams in Node.js.
+
+- **Readable**: streams from which data can be read.
+- **Writable**: streams to which we can write data.
+- **Duplex**: streams that are both Readable and Writable.
+- **Transform**: streams that can modify or transform the data as it is written and read.
+
+Multiple streams can be chained together using `pipe()` method.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+
+<BadgeLink colorScheme='blue' badgeText='Official Website' href='https://nodejs.org/api/stream.html'>Stream API Official Documentation</BadgeLink>
+<BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=GlybFFMXXmQ'>Node.js Streams tutorial</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://nodesource.com/blog/understanding-streams-in-nodejs'>Understanding Streams in Node.js</BadgeLink>