🐛 FIX: "See also" admonition class (#24)

Author: rowanc1

src/directives/admonitions.ts

@@ -28,7 +28,8 @@ class BaseAdmonition extends Directive {
       block: true
     })
     adToken.attrSet("class", "admonition")
-    if (this.title) adToken.attrJoin("class", this.title.toLowerCase())
+    if (this.title)
+      adToken.attrJoin("class", this.title.toLowerCase().replace(/ /g, ""))
     if (data.options.class) {
       adToken.attrJoin("class", data.options.class.join(" "))
     }

tests/fixtures/directives.md

@@ -22,6 +22,18 @@ Some *content*
 </aside>
 .
 
+admonition
+.
+```{seealso}
+See other things here!
+```
+.
+<aside class="admonition seealso">
+<header class="admonition-title">See Also</header>
+<p>See other things here!</p>
+</aside>
+.
+
 nested-admonition
 .
 ````{note} This is a note