style: format all files with prettier

plugins/shell-scripting/skills/shellcheck-configuration/SKILL.md

@@ -23,6 +23,7 @@ Comprehensive guidance for configuring and using ShellCheck to improve shell scr
 ### What is ShellCheck?
 
 ShellCheck is a static analysis tool that analyzes shell scripts and detects problematic patterns. It supports:
+
 - Bash, sh, dash, ksh, and other POSIX shells
 - Over 100 different warnings and errors
 - Configuration for target shell and flags
@@ -82,6 +83,7 @@ export SHELLCHECK_CONFIG=~/.shellcheckrc
 ## Common ShellCheck Error Codes
 
 ### SC1000-1099: Parser Errors
+
 ```bash
 # SC1004: Backslash continuation not followed by newline
 echo hello\