Merge pull request #1 from mlrepa/release-1

Release 1

.gitignore

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+# folders
+
+## IDEs
+.idea
+.DS_Store
+
+## Python
+dvc-venv*
+.ipynb_checkpoints
+/sample_image.jpg
+/datadir
+/cats-dogs

README.md

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+# Lesson 2 tutorial: Versioning Data and Model 
+**ML REPA School course**: Machine Learning experiments reproducibility and engineering with DVC
+
+## 1. Clone this repository
+
+```bash
+git clone https://github.com/mlrepa/dvc-2-data-versioning.git
+cd dvc-2-data-versioning
+```
+
+## 2. Create and activate virtual environment
+
+Install virtualenv in advance: 
+
+```bash
+pip install virtualenv
+```
+
+Create virtual environment named `dvc` (you may use other name)
+```bash
+python3 -m venv dvc-venv
+source dvc-venv/bin/activate
+```
+
+## 3. Install python libraries
+
+```bash
+pip install -r requirements.txt
+```
+
+
+## 4. Add Virtual Environment to Jupyter Notebook
+
+```bash
+python -m ipykernel install --user --name=dvc-venv
+``` 
+
+## 5. Configure ToC for jupyter notebook (optional)
+
+```bash
+sudo jupyter contrib nbextension install
+jupyter nbextension enable toc2/main
+```
+
+## 6. Run and follow Jupyter Notebook `dvc-2-data-versioning.ipynb` for instructions:
+
+```bash
+jupyter notebook
+```