docs: correct the code block Syntax in Bash Scripting page (#104)

docs/bash-scripting/introduction.md

@@ -67,8 +67,6 @@ echo "First Argument: $1"
 
 We can do Arithmetic operations in bash. We use the `(( ))` to do Arithmetic operations.
 
-```bash
-
 ```bash
 #!/bin/bash
 
@@ -219,4 +217,4 @@ echo '{"name": "John", "age": 30}' | jq '.name'
 
 - [Learning Resources](./learning-resources.md) - Learn more about Bash Scripting with these resources.
 - [Other Resources](./other-resources.md) - Explore more about Bash Scripting with these resources.
-- [Tools](./tools.md) - Explore the tools used in Bash Scripting.
+- [Tools](./tools.md) - Explore the tools used in Bash Scripting.