Initial implementation of command link arguments (#573)

Initial implementation of command link arguments

---------

Co-authored-by: prcrst <p-github@prcr.st>
Co-authored-by: Zef Hemel <zef@zef.me>

website/Markdown/Command links.md

@@ -0,0 +1,10 @@
+Command links allow you to create buttons in your pages that trigger commands.
+
+# Basic use
+{[Stats: Show]} or {[Open Daily Note]}
+
+# Aliasing
+{[Stats: Show|Show me stats]}
+
+# Passing arguments
+{[Flash: Custom Message|Say hello]("hello there")}

website/Markdown/Extensions.md

@@ -8,7 +8,7 @@ In addition to supporting [[Markdown/Basics|markdown basics]] as standardized by
     * [[Live Templates]]
 * [[Anchors]]
 * Hashtags, e.g. `#mytag`.
-* Command link syntax: `{[Stats: Show]}` rendered into a clickable button {[Stats: Show]}.
+* [[Markdown/Command links]] syntax
 * [Tables](https://www.markdownguide.org/extended-syntax/#tables)
 * [Task lists](https://www.markdownguide.org/extended-syntax/#task-lists)
 * [Highlight](https://www.markdownguide.org/extended-syntax/#highlight)