Add more snippets for basic syntax (#105174)

extensions/markdown-basics/snippets/markdown.code-snippets

@@ -14,43 +14,54 @@
 		"body": "> ${1:${TM_SELECTED_TEXT}}",
 		"description": "Insert quoted text"
 	},
-	"Insert code": {
+	"Insert inline code": {
 		"prefix": "code",
 		"body": "`${1:${TM_SELECTED_TEXT}}`$0",
-		"description": "Insert code"
+		"description": "Insert inline code"
 	},
 	"Insert fenced code block": {
 		"prefix": "fenced codeblock",
-		"body": [
-			"```${1:language}",
-			"${TM_SELECTED_TEXT}$0",
-			"```"
-		],
+		"body": ["```${1:language}", "${TM_SELECTED_TEXT}$0", "```"],
 		"description": "Insert fenced code block"
 	},
-	"Insert heading": {
-		"prefix": "heading",
+	"Insert heading level 1": {
+		"prefix": "heading1",
 		"body": "# ${1:${TM_SELECTED_TEXT}}",
-		"description": "Insert heading"
+		"description": "Insert heading level 1"
+	},
+	"Insert heading level 2": {
+		"prefix": "heading2",
+		"body": "## ${1:${TM_SELECTED_TEXT}}",
+		"description": "Insert heading level 2"
+	},
+	"Insert heading level 3": {
+		"prefix": "heading3",
+		"body": "### ${1:${TM_SELECTED_TEXT}}",
+		"description": "Insert heading level 3"
+	},
+	"Insert heading level 4": {
+		"prefix": "heading4",
+		"body": "#### ${1:${TM_SELECTED_TEXT}}",
+		"description": "Insert heading level 4"
+	},
+	"Insert heading level 5": {
+		"prefix": "heading5",
+		"body": "##### ${1:${TM_SELECTED_TEXT}}",
+		"description": "Insert heading level 5"
+	},
+	"Insert heading level 6": {
+		"prefix": "heading6",
+		"body": "###### ${1:${TM_SELECTED_TEXT}}",
+		"description": "Insert heading level 6"
 	},
 	"Insert unordered list": {
 		"prefix": "unordered list",
-		"body": [
-			"- ${1:first}",
-			"- ${2:second}",
-			"- ${3:third}",
-			"$0"
-		],
+		"body": ["- ${1:first}", "- ${2:second}", "- ${3:third}", "$0"],
 		"description": "Insert unordered list"
 	},
 	"Insert ordered list": {
 		"prefix": "ordered list",
-		"body": [
-			"1. ${1:first}",
-			"2. ${2:second}",
-			"3. ${3:third}",
-			"$0"
-		],
+		"body": ["1. ${1:first}", "2. ${2:second}", "3. ${3:third}", "$0"],
 		"description": "Insert ordered list"
 	},
 	"Insert horizontal rule": {
@@ -67,5 +78,10 @@
 		"prefix": "image",
 		"body": "![${TM_SELECTED_TEXT:${1:alt}}](https://${2:link})$0",
 		"description": "Insert image"
+	},
+	"Insert strikethrough": {
+		"prefix": "strikethrough",
+		"body": "~~${1:${TM_SELECTED_TEXT}}~~",
+		"description": "Insert strikethrough"
 	}
 }