Revert "Remove markdown from git tracking (#139)"

This reverts commit bbb6e3f309.

markdown/bitburner.product.md

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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [Product](./bitburner.product.md)
+
+## Product interface
+
+Product in a warehouse
+
+<b>Signature:</b>
+
+```typescript
+interface Product 
+```
+
+## Properties
+
+|  Property | Type | Description |
+|  --- | --- | --- |
+|  [cityData](./bitburner.product.citydata.md) | { \[key: string\]: number\[\] } | Data refers to the production, sale, and quantity of the products These values are specific to a city For each city, the data is \[qty, prod, sell\] |
+|  [cmp](./bitburner.product.cmp.md) | number \| undefined | Competition for the product, only present if "Market Research - Competition" unlocked |
+|  [developmentProgress](./bitburner.product.developmentprogress.md) | number | Creation progress - A number between 0-100 representing percentage |
+|  [dmd](./bitburner.product.dmd.md) | number \| undefined | Demand for the product, only present if "Market Research - Demand" unlocked |
+|  [name](./bitburner.product.name.md) | string | Name of the product |
+|  [pCost](./bitburner.product.pcost.md) | number | Production cost |
+|  [properties](./bitburner.product.properties.md) | { \[key: string\]: number } | Product Properties. The data is {<!-- -->qlt, per, dur, rel, aes, fea<!-- -->} |
+|  [rat](./bitburner.product.rat.md) | number | Product Rating |
+|  [sCost](./bitburner.product.scost.md) | string \| number | Sell cost, can be "MP+5" |
+