DOC: Add Visible Table of Contents to Project README Documentation (pandas-dev#53504)

* added table of content navlinks

* new line at end of file and removed whitespace, pre-commit hooks pass

Author: ssharp0

README.md

@@ -27,6 +27,19 @@ the broader goal of becoming **the most powerful and flexible open source data
 analysis / manipulation tool available in any language**. It is already well on
 its way towards this goal.
 
+## Table of Contents
+
+- [Main Features](#main-features)
+- [Where to get it](#where-to-get-it)
+- [Dependencies](#dependencies)
+- [Installation from sources](#installation-from-sources)
+- [License](#license)
+- [Documentation](#documentation)
+- [Background](#background)
+- [Getting Help](#getting-help)
+- [Discussion and Development](#discussion-and-development)
+- [Contributing to pandas](#contributing-to-pandas)
+
 ## Main Features
 Here are just a few of the things that pandas does well:
 
@@ -157,7 +170,9 @@ Further, general questions and discussions can also take place on the [pydata ma
 ## Discussion and Development
 Most development discussions take place on GitHub in this repo. Further, the [pandas-dev mailing list](https://mail.python.org/mailman/listinfo/pandas-dev) can also be used for specialized discussions or design issues, and a [Slack channel](https://pandas.pydata.org/docs/dev/development/community.html?highlight=slack#community-slack) is available for quick development related questions.
 
-## Contributing to pandas [![Open Source Helpers](https://www.codetriage.com/pandas-dev/pandas/badges/users.svg)](https://www.codetriage.com/pandas-dev/pandas)
+## Contributing to pandas
+
+[![Open Source Helpers](https://www.codetriage.com/pandas-dev/pandas/badges/users.svg)](https://www.codetriage.com/pandas-dev/pandas)
 
 All contributions, bug reports, bug fixes, documentation improvements, enhancements, and ideas are welcome.
 
@@ -172,3 +187,7 @@ Or maybe through using pandas you have an idea of your own or are looking for so
 Feel free to ask questions on the [mailing list](https://groups.google.com/forum/?fromgroups#!forum/pydata) or on [Slack](https://pandas.pydata.org/docs/dev/development/community.html?highlight=slack#community-slack).
 
 As contributors and maintainers to this project, you are expected to abide by pandas' code of conduct. More information can be found at: [Contributor Code of Conduct](https://github.com/pandas-dev/.github/blob/master/CODE_OF_CONDUCT.md)
+
+<hr>
+
+[Go to Top](#table-of-contents)