Add process.stdout content (#2407)

Adding description and documentation link to the Process stdout

content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/101-printing-output/100-process-stdout.md

@@ -1 +1,5 @@
-# Process stdout
+# Process stdout
+The process.stdout property is an inbuilt application programming interface of the process module which is used to send data out of our program. A Writable Stream to stdout. It implements a write() method. 
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='blue' badgeText='Official Documentation' href='https://nodejs.org/api/process.html#processstdout'>process.stdout</BadgeLink>