[doc] full generator details (#4941)

docs/generators/haskell-http-client.md

@@ -31,3 +31,67 @@ sidebar_label: haskell-http-client
 |dateFormat|format string used to parse/render a date| |%Y-%m-%d|
 |customTestInstanceModule|test module used to provide typeclass instances for types not known by the generator| |null|
 |hideGenerationTimestamp|Hides the generation timestamp when files are generated.| |true|
+
+## IMPORT MAPPING
+
+| Type/Alias | Imports |
+| ---------- | ------- |
+
+
+## INSTANTIATION TYPES
+
+| Type/Alias | Instantiated By |
+| ---------- | --------------- |
+
+
+## LANGUAGE PRIMITIVES
+
+<ul data-columns="2" style="list-style-type: disc;-webkit-columns:2;-moz-columns:2;columns:2;-moz-column-fill:auto;column-fill:auto"><li>Integer</li>
+<li>FilePath</li>
+<li>Float</li>
+<li>Bool</li>
+<li>Char</li>
+<li>List</li>
+<li>Text</li>
+<li>String</li>
+<li>Double</li>
+<li>Int</li>
+</ul>
+
+## RESERVED WORDS
+
+<ul data-columns="2" style="list-style-type: disc;-webkit-columns:2;-moz-columns:2;columns:2;-moz-column-fill:auto;column-fill:auto"><li>qualified</li>
+<li>instance</li>
+<li>data</li>
+<li>import</li>
+<li>infixr</li>
+<li>do</li>
+<li>type</li>
+<li>pure</li>
+<li>foreign</li>
+<li>newtype</li>
+<li>hiding</li>
+<li>rec</li>
+<li>default</li>
+<li>else</li>
+<li>of</li>
+<li>let</li>
+<li>where</li>
+<li>class</li>
+<li>if</li>
+<li>case</li>
+<li>proc</li>
+<li>in</li>
+<li>forall</li>
+<li>module</li>
+<li>then</li>
+<li>infix</li>
+<li>accept</li>
+<li>contenttype</li>
+<li>as</li>
+<li>deriving</li>
+<li>infixl</li>
+<li>mdo</li>
+<li>family</li>
+<li>return</li>
+</ul>