Update bash scripting with very useful links (#1504)

content/roadmaps/102-devops/content/102-managing-servers/101-live-in-terminal/104-bash-scripting.md

@@ -9,5 +9,8 @@ You actually use GUI shells all the time. For example, Windows 10 is based on th
 With a CLI shell like Bash, you type commands into the program to directly control your computer's OS. Opening up the terminal on your Mac or command line in Linux will look similar to consoles and integrated development environments (IDEs) for other programming languages such as R, Ruby, or Python. You can type commands directly in the command line or run Bash scripts to perform longer and more complex tasks.
 
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.shellscript.sh/'>The Shell Scripting Tutorial</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://linuxcommand.org/lc3_writing_shell_scripts.php'>Writing Shell Scripts</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.freecodecamp.org/news/shell-scripting-crash-course-how-to-write-bash-scripts-in-linux/'>Shell Scripting for Beginners</BadgeLink>
 <BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html'>A guide to Bash</BadgeLink>
 <BadgeLink badgeText='Course' colorScheme='green' href='https://www.codecademy.com/learn/bash-scripting'>Codecademy - Learn Bash Scripting</BadgeLink>