Merge pull request #1856 from iterative/cases-tutorial-seo

cases: add custom meta title and meta description to (data versioning tutorial) [SEO]

content/docs/use-cases/versioning-data-and-model-files/tutorial.md

@@ -1,8 +1,15 @@
-# Tutorial: Data & Model Versioning
+---
+title: 'Data and Model Versioning Tutorial'
+description: 'Get hands-on experience with data versioning in a basic machine
+learning version control scenario: managing multiple datasets and ML models
+using DVC.'
+---
+
+# Data and Model Versioning Tutorial
 
 The goal of this example is to give you some hands-on experience with a basic
 machine learning version control scenario: managing multiple datasets and ML
-model versions using DVC commands. We'll work with a
+models using DVC. We'll work with a
 [tutorial](https://blog.keras.io/building-powerful-image-classification-models-using-very-little-data.html)
 that [François Chollet](https://twitter.com/fchollet) put together to show how
 to build a powerful image classifier using a pretty small dataset.