Remove beta tags in readme (#87)

Removing information about Beta (as we target GA).

Signed-off-by: Matthew Kim
<[email protected]>

Author: mattdeekay

README.md

@@ -1,4 +1,4 @@
-# Databricks SQL Driver for Go (Beta)
+# Databricks SQL Driver for Go
 
 
 ![http://www.apache.org/licenses/LICENSE-2.0.txt](http://img.shields.io/:license-Apache%202-brightgreen.svg)
@@ -7,8 +7,6 @@
 
 This repo contains a Databricks SQL Driver for Go's [database/sql](https://golang.org/pkg/database/sql) package. It can be used to connect and query Databricks clusters and SQL Warehouses.
 
-**NOTE: This Driver is Beta.**
-
 ## Documentation
 
 See `doc.go` for full documentation or the Databrick's documentation for [SQL Driver for Go](https://docs.databricks.com/dev-tools/go-sql-driver.html).