Add sample collection documents

_pets/tabby.md

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+---
+title: "Tabby"
+categories: 
+  - cat
+---
+> A tabby is any domestic cat that has a coat featuring distinctive stripes, dots, lines or swirling patterns, usually together with a mark resembling an 'M' on its forehead. Tabbies are sometimes erroneously assumed to be a cat breed. In fact, the tabby pattern is found in many breeds, as well as among the general mixed-breed population. The tabby pattern is a naturally occurring feature that may be related to the coloration of the domestic cat's direct ancestor, the African wildcat, which (along with the European wildcat and Asiatic wildcat) has a similar coloration.
+
+> <cite>From Wikipedia, the free encyclopedia</cite>