Update markdown grammar

extensions/markdown-basics/syntaxes/markdown.tmLanguage.json

@@ -4,7 +4,7 @@
 		"If you want to provide a fix or improvement, please create a pull request against the original repository.",
 		"Once accepted there, we are happy to receive an update request."
 	],
-	"version": "https://github.com/microsoft/vscode-markdown-tm-grammar/commit/935f7a6d1da73e16231be18c545d7991d3698075",
+	"version": "https://github.com/microsoft/vscode-markdown-tm-grammar/commit/3445afdd642f67052a21c0f86bf76b3deb45fd26",
 	"name": "Markdown",
 	"scopeName": "text.html.markdown",
 	"patterns": [
@@ -1986,7 +1986,7 @@
 									"include": "#list_paragraph"
 								}
 							],
-							"while": "((^|\\G)([ ]{4}|\\t))|(^[ \\t]*$)"
+							"while": "((^|\\G)([ ]{2,4}|\\t))|(^[ \\t]*$)"
 						},
 						{
 							"begin": "(^|\\G)([ ]{0,3})([0-9]+\\.)([ ]{1,3}|\\t)",
@@ -2004,7 +2004,7 @@
 									"include": "#list_paragraph"
 								}
 							],
-							"while": "((^|\\G)([ ]{4}|\\t))|(^[ \\t]*$)"
+							"while": "((^|\\G)([ ]{2,4}|\\t))|(^[ \\t]*$)"
 						}
 					]
 				},
@@ -2343,32 +2343,32 @@
 						"7": {
 							"name": "markup.underline.link.markdown"
 						},
-						"8": {
+						"9": {
 							"name": "punctuation.definition.link.markdown"
 						},
-						"9": {
+						"10": {
 							"name": "string.other.link.description.title.markdown"
 						},
-						"10": {
+						"11": {
 							"name": "punctuation.definition.string.begin.markdown"
 						},
-						"11": {
+						"12": {
 							"name": "punctuation.definition.string.end.markdown"
 						},
-						"12": {
+						"13": {
 							"name": "string.other.link.description.title.markdown"
 						},
-						"13": {
+						"14": {
 							"name": "punctuation.definition.string.begin.markdown"
 						},
-						"14": {
+						"15": {
 							"name": "punctuation.definition.string.end.markdown"
 						},
-						"15": {
+						"16": {
 							"name": "punctuation.definition.metadata.markdown"
 						}
 					},
-					"match": "(?x)\n  (\\[)((?<square>[^\\[\\]\\\\]|\\\\.|\\[\\g<square>*+\\])*+)(\\])\n                # Match the link text.\n  (\\()            # Opening paren for url\n    (<?)(.*?)(>?)      # The url\n    [ \\t]*          # Optional whitespace\n    (?:\n        ((\\().+?(\\)))    # Match title in parens…\n      | ((\").+?(\"))    # or in quotes.\n    )?            # Title is optional\n    \\s*            # Optional whitespace\n  (\\))\n",
+					"match": "(?x)\n  (\\[)((?<square>[^\\[\\]\\\\]|\\\\.|\\[\\g<square>*+\\])*+)(\\])\n                # Match the link text.\n  (\\()            # Opening paren for url\n    (<?)((?<url>[^\\s()]+|\\(\\g<url>*\\))*)(>?)      # The url\n    [ \\t]*          # Optional whitespace\n    (?:\n        ((\\().+?(\\)))    # Match title in parens…\n      | ((\").+?(\"))    # or in quotes.\n    )?            # Title is optional\n    \\s*            # Optional whitespace\n  (\\))\n",
 					"name": "meta.link.inline.markdown"
 				},
 				"link-ref": {