Allow bash, sh, zsh as language hints for shellscript

extensions/shellscript/package.json

@@ -6,7 +6,7 @@
 	"contributes": {
 		"languages": [{
 			"id": "shellscript",
-			"aliases": ["Shell Script (Bash)", "shellscript"],
+			"aliases": ["Shell Script (Bash)", "shellscript", "bash", "sh", "zsh"],
 			"extensions": [".sh", ".bash", ".bashrc", ".bash_profile", ".bash_login", ".profile", ".bash_logout", ".zsh", ".zshrc"],
 			"firstLine": "^#!.*\\b(bash|zsh|sh|tcsh)|^#\\s*-\\*-[^*]*mode:\\s*shell-script[^*]*-\\*-",
 			"configuration": "./shellscript.configuration.json",