Clarify markdown setting string. Fixes #20409

extensions/markdown/package.nls.json

 {
-	"markdown.preview.doubleClickToSwitchToEditor.desc": "Enable double clicking in the markdown preview switches to the editor.",
+	"markdown.preview.doubleClickToSwitchToEditor.desc": "Double click in the markdown preview to switch to the editor.",
 	"markdown.preview.fontFamily.desc": "Controls the font family used in the markdown preview.",
 	"markdown.preview.fontSize.desc": "Controls the font size in pixels used in the markdown preview.",
 	"markdown.preview.lineHeight.desc": "Controls the line height used in the markdown preview. This number is relative to the font size.",

extensions/typescript/package.nls.json

@@ -26,6 +26,6 @@
 	"javascript.validate.enable": "Enable/disable JavaScript validation.",
 	"typescript.goToProjectConfig.title": "Go to Project Configuration",
 	"javascript.goToProjectConfig.title": "Go to Project Configuration",
-	"typescript.referencesCodeLens.enabled": "Enable/disable references CodeLens",
+	"typescript.referencesCodeLens.enabled": "Enable/disable references CodeLens.",
 	"typescript.selectTypeScriptVersion.title": "Select TypeScript Version"
 }
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