Add install and usage sections to README (#15)

README.md

@@ -7,3 +7,57 @@ This connector is in an early experimental/testing phase.
 
 [Reach out to us](https://coiled.io/contact-us/) if you are interested in trying
 it out!
+
+## Installation
+
+`dask-snowflake` can be installed with `pip`:
+
+```
+pip install dask-snowflake
+```
+
+or with `conda`:
+
+```
+conda install -c conda-forge dask-snowflake
+```
+
+## Usage
+
+`dask-snowflake` provides `read_snowflake` and `to_snowflake` methods
+for parallel IO from Snowflake with Dask.
+
+```python
+>>> from dask_snowflake import read_snowflake
+>>> example_query = '''
+...    SELECT *
+...    FROM SNOWFLAKE_SAMPLE_DATA.TPCH_SF1.CUSTOMER;
+... '''
+>>> ddf = read_snowflake(
+...     query=example_query,
+...     connection_kwargs={
+...         "user": "...",
+...         "password": "...",
+...         "account": "...",
+...     },
+... )
+```
+
+```python
+>>> from dask_snowflake import to_snowflake
+>>> to_snowflake(
+...     ddf,
+...     name="my_table",
+...     connection_kwargs={
+...         "user": "...",
+...         "password": "...",
+...         "account": "...",
+...     },
+... )
+```
+
+See their docstrings for further API information.
+
+## License
+
+[BSD-3](LICENSE)