add param type

_yaml/data-functions.yml

@@ -4,7 +4,7 @@ df_string:
       - argName: algo
         optional: true
         longName: Algorithm
-        type: String
+        type: String enum
         default: md5
         options:
           - md5

docs/_extra/css/macro-styles.css

@@ -44,6 +44,12 @@
 	border-top: 1px solid var(--color-foreground-base);
 }
 
+.dt-func-arg-type {
+	color: var(--color-text-base);
+	font-size: var(--small-font);
+	text-transform: lowercase;
+}
+
 .dt-func-header-link {
 	display: inline-block;
 	opacity: 0;	

docs/_macros/data-functions.html

@@ -13,7 +13,7 @@
 <h4 class="dt-func-title-h4">Function parameters</h4>
 	[[% for arg in funcArgs %]]
 <div class="dt-func-args">
-	<span class="dt-func-name" id="[[funcName]]-[[arg.argName]]">[[arg.argName]]</span><span class="dt-func-optional">[[% if arg.optional %]]Optional[[% else %]]Required[[% endif %]]</span><a class="dt-func-arg-name-anchor" href="#[[funcName]]-[[arg.argName]]"></a> 
+	<span class="dt-func-name" id="[[funcName]]-[[arg.argName]]">[[arg.argName]]</span><span class="dt-func-optional">[[% if arg.optional %]]Optional[[% else %]]Required[[% endif %]]</span><span class="dt-func-arg-type">[[ arg.type ]]</span><a class="dt-func-arg-name-anchor" href="#[[funcName]]-[[arg.argName]]"></a> 
 	<div class="dt-func-options">[[% if arg.options %]]
 		<p>Default: <code>[[ arg.default ]]</code></p>
 		<p>One of: [[% for option in arg.options %]]