Update README.md

Author: pensivebrian

README.md

@@ -4,7 +4,7 @@
 # mssql-cli
 [**mssql-cli**](https://github.com/dbcli/mssql-cli) is an interactive command line query tool for SQL Server. This open source tool works cross-platform and proud to be a part of the [dbcli](https://github.com/dbcli) community. 
 
-![mssql-cli Autocomplete](https://github.com/dbcli/mssql-cli/raw/master/screenshots/mssql-cli-autocomplete.gif)
+![mssql-cli Autocomplete](https://github.com/dbcli/mssql-cli/raw/main/screenshots/mssql-cli-autocomplete.gif)
 
 mssql-cli supports a rich interactive command line experience, with features such as:
 - **Auto-completion**: fewer keystrokes needed to complete complicated queries.
@@ -15,23 +15,23 @@ mssql-cli supports a rich interactive command line experience, with features suc
 - **Non-interactive support**: execute a query without jumping into the interactive experience.
 
 ## Quick Start
-Read the section below to quickly get started with mssql-cli. Consult the [usage guide](https://github.com/dbcli/mssql-cli/tree/master/doc/usage_guide.md) for a deeper dive into mssql-cli features.
+Read the section below to quickly get started with mssql-cli. Consult the [usage guide](https://github.com/dbcli/mssql-cli/tree/main/doc/usage_guide.md) for a deeper dive into mssql-cli features.
 
 ### Install mssql-cli
 Platform-specific installation instructions are below:
-| [Windows](https://github.com/dbcli/mssql-cli/blob/master/doc/installation/windows.md#windows-installation) (preview) | [macOS](https://github.com/dbcli/mssql-cli/blob/master/doc/installation/macos.md#macos-installation) | [Linux](https://github.com/dbcli/mssql-cli/blob/master/doc/installation/linux.md) |
+| [Windows](https://github.com/dbcli/mssql-cli/blob/main/doc/installation/windows.md#windows-installation) (preview) | [macOS](https://github.com/dbcli/mssql-cli/blob/main/doc/installation/macos.md#macos-installation) | [Linux](https://github.com/dbcli/mssql-cli/blob/main/doc/installation/linux.md) |
 | - | - | - |
 
-Visit the [installation reference guide](https://github.com/dbcli/mssql-cli/tree/master/doc/installation) to view all supported releases and downloads.
+Visit the [installation reference guide](https://github.com/dbcli/mssql-cli/tree/main/doc/installation) to view all supported releases and downloads.
 
 #### Install with Linux Package Manager
-Follow the [Linux installation instructions]('https://github.com/dbcli/mssql-cli/blob/master/doc/installation/linux.md') to install mssql-cli using `apt-get`, `yum`, and other Linux package managers.
+Follow the [Linux installation instructions]('https://github.com/dbcli/mssql-cli/blob/main/doc/installation/linux.md') to install mssql-cli using `apt-get`, `yum`, and other Linux package managers.
 
 #### Install with pip
 ```sh
 python -m pip install mssql-cli
 ```
-Please refer to the [pip installation docs](https://github.com/dbcli/mssql-cli/blob/master/doc/installation/pip.md) for more platform-specific information.
+Please refer to the [pip installation docs](https://github.com/dbcli/mssql-cli/blob/main/doc/installation/pip.md) for more platform-specific information.
 
 ### Connect to Server
 Complete the command below to connect to your server:
@@ -49,13 +49,13 @@ mssql-cli --help
 ```
 
 ### Usage Docs
-Please refer to the [usage guide](https://github.com/dbcli/mssql-cli/tree/master/doc/usage_guide.md) for details on options and example usage. If you are having any issues using mssql-cli, please see the [troubleshooting guide](https://github.com/dbcli/mssql-cli/blob/master/doc/troubleshooting_guide.md).
+Please refer to the [usage guide](https://github.com/dbcli/mssql-cli/tree/main/doc/usage_guide.md) for details on options and example usage. If you are having any issues using mssql-cli, please see the [troubleshooting guide](https://github.com/dbcli/mssql-cli/blob/main/doc/troubleshooting_guide.md).
 
 ## Telemetry
-The mssql-cli tool includes a telemetry feature. Please refer to the [telemetry guide](https://github.com/dbcli/mssql-cli/tree/master/doc/telemetry_guide.md) for more information.
+The mssql-cli tool includes a telemetry feature. Please refer to the [telemetry guide](https://github.com/dbcli/mssql-cli/tree/main/doc/telemetry_guide.md) for more information.
 
 ## Contributing
-If you would like to contribute to the project, please refer to the [development guide](https://github.com/dbcli/mssql-cli/tree/master/doc/development_guide.md).
+If you would like to contribute to the project, please refer to the [development guide](https://github.com/dbcli/mssql-cli/tree/main/doc/development_guide.md).
 
 ## Contact Us
 If you encounter any bugs or would like to leave a feature request, please file an issue in the
@@ -66,4 +66,4 @@ This project has adopted the [Microsoft Open Source Code of Conduct](https://ope
 [email protected] with any additional questions or comments.
 
 ## License
-mssql-cli is licensed under the [BSD-3 license](https://github.com/dbcli/mssql-cli/blob/master/LICENSE.txt).
+mssql-cli is licensed under the [BSD-3 license](https://github.com/dbcli/mssql-cli/blob/main/LICENSE.txt).