docs: Added info on repo-config.yaml and tables of contents

CONTRIBUTING.md

@@ -2,6 +2,38 @@
 
 Thank you for making seCureLI better! We look forward to your contribution.
 
+## Table of Contents <!-- omit in toc -->
+
+- [Contributing to seCureLI](#contributing-to-secureli)
+  - [Pull Requests](#pull-requests)
+- [Environment Requirements](#environment-requirements)
+  - [Supported Languages](#supported-languages)
+  - [Python 3.9.9](#python-399)
+  - [Setup macOS](#setup-macos)
+  - [Setup Windows™](#setup-windows)
+  - [Setup Linux](#setup-linux)
+- [Setup (all Operating Systems)](#setup-all-operating-systems)
+- [Development with PyCharm](#development-with-pycharm)
+  - [Setup](#setup)
+  - [Create your first Run/Debug Configuration](#create-your-first-rundebug-configuration)
+  - [Testing your Init Configuration](#testing-your-init-configuration)
+  - [Creating the remaining Run/Debug Configurations](#creating-the-remaining-rundebug-configurations)
+- [Development with VS Code](#development-with-vs-code)
+- [Building seCureLI Docker Containers behind a corporate proxy](#building-secureli-docker-containers-behind-a-corporate-proxy)
+- [seCureLI Architecture](#secureli-architecture)
+  - [Main](#main)
+  - [Container](#container)
+  - [Actions](#actions)
+  - [Services](#services)
+    - [Scanning Services](#scanning-services)
+  - [Abstractions](#abstractions)
+  - [APIs \& Repositories](#apis--repositories)
+  - [Third Party Dependencies](#third-party-dependencies)
+    - [Dockerfiles](#dockerfiles)
+  - [Best Practices](#best-practices)
+- [Contributors](#contributors)
+
+
 ## Pull Requests
 
 This project requires a single approval

README.md

@@ -15,6 +15,35 @@ seCureLI isn’t a magic tool that makes things secure because you have it. It e
 
 Looking to contribute? Read our [CONTRIBUTING.md](https://github.com/slalombuild/secureli/blob/main/CONTRIBUTING.md)
 
+## Table of Contents <!-- omit in toc -->
+
+- [Installation](#installation)
+  - [Homebrew](#homebrew)
+  - [pip (Package Installer for Python)](#pip-package-installer-for-python)
+- [Usage](#usage)
+  - [Help](#help)
+  - [Init](#init)
+  - [Scan](#scan)
+    - [PII Scan](#pii-scan)
+- [Upgrade](#upgrade)
+  - [Upgrading seCureLI via Homebrew](#upgrading-secureli-via-homebrew)
+  - [Upgrading via pip](#upgrading-via-pip)
+  - [Upgrading pre-commit hooks for repo](#upgrading-pre-commit-hooks-for-repo)
+- [Configuration](#configuration)
+  - [.secureli.yaml](#secureliyaml)
+    - [top level](#top-level)
+    - [repo\_files](#repo_files)
+    - [echo](#echo)
+    - [pii\_scanner](#pii_scanner)
+    - [telemetry](#telemetry)
+  - [pre-commit](#pre-commit)
+    - [Passing arguments to pre-commit hooks](#passing-arguments-to-pre-commit-hooks)
+  - [`.secureli/repo-config.yaml`](#securelirepo-configyaml)
+  - [Using Observability Platform to Show Secret Detection Statistics](#using-observability-platform-to-show-secret-detection-statistics)
+    - [Steps for New Relic](#steps-for-new-relic)
+- [License](#license)
+
+
 ## Installation
 
 ### Homebrew
@@ -200,6 +229,12 @@ This is an array where the parameter and its argument are separate items; `["--e
 - args: ["--exclude-files", "*.md"]
 ```
 
+### `.secureli/repo-config.yaml`
+
+This file is generated by seCureLI and contains the configuration for the repo.
+It is not intended to be modified by the user. Running `secureli update` will
+update this file with the latest configuration.
+
 ### Using Observability Platform to Show Secret Detection Statistics
 
 seCureLI can send secret detection events to an observability platform, such as New Relic. Other platforms may also work, but have not been tested.