docs: fix some href

Author: kizmo04

docs/guide.pug

@@ -24,7 +24,7 @@ block content
       If you are migrating from 4.x to 5.x please take a moment to read the [migration guide](/docs/migrating_to_5.html).
   :markdown
     <ul class="toc">
-      <li><a href="#models">Defining your schema</a></li>
+      <li><a href="#definition">Defining your schema</a></li>
       <li><a href="#models">Creating a model</a></li>
       <li><a href="#methods">Instance methods</a></li>
       <li><a href="#statics">Statics</a></li>
@@ -80,7 +80,7 @@ block content
     * [Mixed](./schematypes.html#mixed)
     * [ObjectId](./schematypes.html#objectids)
     * [Array](./schematypes.html#arrays)
-    * Decimal128
+    * [Decimal128](./api.html#mongoose_Mongoose-Decimal128)
     * [Map](./schematypes.html#maps)
 
     Read more about [SchemaTypes here](./schematypes.html).

docs/schematypes.pug

@@ -66,7 +66,7 @@ block content
     - [Mixed](#mixed)
     - [ObjectId](#objectids)
     - [Array](#arrays)
-    - [Decimal128](./api.html#Decimal128)
+    - [Decimal128](./api.html#mongoose_Mongoose-Decimal128)
     - [Map](#maps)
 
     <h4>Example</h4>