Merge pull request igorbarinov#90 from fulldecent/patch-1

Add Google Sheets ETL tool

Author: vordimous

README.md

@@ -130,6 +130,7 @@
 - [Sling](https://slingdata.io/) - Sling is CLI data integration tool specialized in moving data between databases, as well as storage systems.
 - [Meltano](https://meltano.com/) - CLI & code-first ELT.
   - [Singer SDK](https://sdk.meltano.com) - The fastest way to build custom data extractors and loaders compliant with the Singer Spec.
+- [Google Sheets ETL](https://github.com/fulldecent/google-sheets-etl) - Live import all your Google Sheets to your data warehouse.
 
 ## File System
 
@@ -191,7 +192,6 @@
 - [Data Mechanics](https://www.datamechanics.co) - A cloud-based platform deployed on Kubernetes making Apache Spark more developer-friendly and cost-effective.
 - [Tez](https://tez.apache.org/) - An application framework which allows for a complex directed-acyclic-graph of tasks for processing data.
 - [Bistro](https://github.com/asavinov/bistro) - A light-weight engine for general-purpose data processing including both batch and stream analytics. It is based on a novel unique data model, which represents data via _functions_ and processes data via _columns operations_ as opposed to having only set operations in conventional approaches like MapReduce or SQL.
-
 - Batch ML
   - [H2O](https://www.h2o.ai/) - Fast scalable machine learning API for smarter applications.
   - [Mahout](https://mahout.apache.org/) - An environment for quickly creating scalable performant machine learning applications.