Update 100-dotenv.md (#1961)

kamranahmedse · Oct 4, 2022 · 22ba125 · 22ba125
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-# Dotenv
+# Dotenv
+
+The dotenv is a zero-dependency module that loads environment variables from a . env file into process. env
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.npmjs.com/package/dotenv'>Dotenv package</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://zetcode.com/javascript/dotenv/'>Dotenv tutorial</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.freecodecamp.org/news/how-to-use-node-environment-variables-with-a-dotenv-file-for-node-js-and-npm/'>How to Use Node Environment Variables with a DotEnv File for Node.js and npm</BadgeLink>