Actually add documentation

Docs/Layers/wrong_postal_code.md

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+ wrong_postal_code 
+===================
+
+
+
+
+
+
+
+
+## Table of contents
+
+1. [wrong_postal_code](#wrong_postal_code)
+  - [Basic tags for this layer](#basic-tags-for-this-layer)
+  - [Supported attributes](#supported-attributes)
+
+
+
+
+
+  - Not visible in the layer selection by default. If you want to make this layer toggable, override `name`
+  - Not rendered on the map by default. If you want to rendering this on the map, override `mapRenderings`
+
+
+[Go to the source code](../assets/layers/wrong_postal_code/wrong_postal_code.json)
+
+
+
+ Basic tags for this layer 
+---------------------------
+
+
+
+Elements must have the all of following tags to be shown on this layer:
+
+
+
+  - boundary~^..*$
+  - addr:postcode~^..*$
+
+
+
+
+ Supported attributes 
+----------------------
+
+ 
+
+This document is autogenerated from assets/layers/wrong_postal_code/wrong_postal_code.json