update reload documentation

[alexanderadam]

refs #358

PS: I'm looking for a new adventure in case anybody is looking to hire or work with a Ruby/Rails/Crystal dev
PPS: would you be so kind and add the hacktoberfest-accepted label to this issue in case you find that PR helpful? 🥺

[dblock]

Thanks!

• Add to TOC.
• Do we need the troubleshooting info here? It's a feature of Rails and rails documentation provides plenty of details.

[grape-bot]

	1 Error
🚫	The TOC found in README.md doesn't match the sections of the file.

Here's the expected TOC for README.md:

# Table of Contents - [What is Grape?](#what-is-grape) - [Stable Release](#stable-release) - [Project Resources](#project-resources) - [Grape for Enterprise](#grape-for-enterprise) - [Installation](#installation) - [Basic Usage](#basic-usage) - [Rails 7.1](#rails-71) - [Mounting](#mounting) - [All](#all) - [Rack](#rack) - [Alongside Sinatra (or other frameworks)](#alongside-sinatra-or-other-frameworks) - [Rails](#rails) - [Zeitwerk](#zeitwerk) - [Modules](#modules) - [Remounting](#remounting) - [Mount Configuration](#mount-configuration) - [Versioning](#versioning) - [Strategies](#strategies) - [Path](#path) - [Header](#header) - [Accept-Version Header](#accept-version-header) - [Param](#param) - [Linting](#linting) - [Bug in Rack::ETag under Rack 3.X](#bug-in-racketag-under-rack-3x) - [Describing Methods](#describing-methods) - [Configuration](#configuration) - [Parameters](#parameters) - [Params Class](#params-class) - [Declared](#declared) - [Include Parent Namespaces](#include-parent-namespaces) - [Include Missing](#include-missing) - [Evaluate Given](#evaluate-given) - [Parameter Precedence](#parameter-precedence) - [Parameter Validation and Coercion](#parameter-validation-and-coercion) - [Supported Parameter Types](#supported-parameter-types) - [Integer/Fixnum and Coercions](#integerfixnum-and-coercions) - [Custom Types and Coercions](#custom-types-and-coercions) - [Multipart File Parameters](#multipart-file-parameters) - [First-Class JSON Types](#first-class-json-types) - [Multiple Allowed Types](#multiple-allowed-types) - [Validation of Nested Parameters](#validation-of-nested-parameters) - [Dependent Parameters](#dependent-parameters) - [Group Options](#group-options) - [Renaming](#renaming) - [Built-in Validators](#built-in-validators) - [allow_blank](#allow_blank) - [values](#values) - [except_values](#except_values) - [same_as](#same_as) - [length](#length) - [regexp](#regexp) - [mutually_exclusive](#mutually_exclusive) - [exactly_one_of](#exactly_one_of) - [at_least_one_of](#at_least_one_of) - [all_or_none_of](#all_or_none_of) - [Nested mutually_exclusive, exactly_one_of, at_least_one_of, all_or_none_of](#nested-mutually_exclusive-exactly_one_of-at_least_one_of-all_or_none_of) - [Namespace Validation and Coercion](#namespace-validation-and-coercion) - [Custom Validators](#custom-validators) - [Validation Errors](#validation-errors) - [I18n](#i18n) - [Custom Validation messages](#custom-validation-messages) - [presence, allow_blank, values, regexp](#presence-allow_blank-values-regexp) - [same_as](#same_as-1) - [length](#length-1) - [all_or_none_of](#all_or_none_of-1) - [mutually_exclusive](#mutually_exclusive-1) - [exactly_one_of](#exactly_one_of-1) - [at_least_one_of](#at_least_one_of-1) - [Coerce](#coerce) - [With Lambdas](#with-lambdas) - [Pass symbols for i18n translations](#pass-symbols-for-i18n-translations) - [Overriding Attribute Names](#overriding-attribute-names) - [With Default](#with-default) - [Using dry-validation or dry-schema](#using-dry-validation-or-dry-schema) - [Headers](#headers) - [Request](#request) - [Header Case Handling](#header-case-handling) - [Response](#response) - [Routes](#routes) - [Helpers](#helpers) - [Path Helpers](#path-helpers) - [Parameter Documentation](#parameter-documentation) - [Cookies](#cookies) - [HTTP Status Code](#http-status-code) - [Redirecting](#redirecting) - [Recognizing Path](#recognizing-path) - [Allowed Methods](#allowed-methods) - [Raising Exceptions](#raising-exceptions) - [Default Error HTTP Status Code](#default-error-http-status-code) - [Handling 404](#handling-404) - [Exception Handling](#exception-handling) - [Rescuing exceptions inside namespaces](#rescuing-exceptions-inside-namespaces) - [Unrescuable Exceptions](#unrescuable-exceptions) - [Exceptions that should be rescued explicitly](#exceptions-that-should-be-rescued-explicitly) - [Logging](#logging) - [API Formats](#api-formats) - [JSONP](#jsonp) - [CORS](#cors) - [Content-type](#content-type) - [API Data Formats](#api-data-formats) - [JSON and XML Processors](#json-and-xml-processors) - [RESTful Model Representations](#restful-model-representations) - [Grape Entities](#grape-entities) - [Hypermedia and Roar](#hypermedia-and-roar) - [Rabl](#rabl) - [Active Model Serializers](#active-model-serializers) - [Sending Raw or No Data](#sending-raw-or-no-data) - [Authentication](#authentication) - [Basic Auth](#basic-auth) - [Register custom middleware for authentication](#register-custom-middleware-for-authentication) - [Describing and Inspecting an API](#describing-and-inspecting-an-api) - [Current Route and Endpoint](#current-route-and-endpoint) - [Before, After and Finally](#before-after-and-finally) - [Anchoring](#anchoring) - [Instance Variables](#instance-variables) - [Using Custom Middleware](#using-custom-middleware) - [Grape Middleware](#grape-middleware) - [Rails Middleware](#rails-middleware) - [Remote IP](#remote-ip) - [Writing Tests](#writing-tests) - [Writing Tests with Rack](#writing-tests-with-rack) - [RSpec](#rspec) - [Airborne](#airborne) - [MiniTest](#minitest) - [Writing Tests with Rails](#writing-tests-with-rails) - [RSpec](#rspec-1) - [MiniTest](#minitest-1) - [Stubbing Helpers](#stubbing-helpers) - [Reloading API Changes in Development](#reloading-api-changes-in-development) - [Reloading in Rack Applications](#reloading-in-rack-applications) - [Reloading in Rails Applications](#reloading-in-rails-applications) - [Rails 7+ (Zeitwerk)](#rails-7-zeitwerk) - [Rails 6 and Earlier](#rails-6-and-earlier) - [Performance Monitoring](#performance-monitoring) - [Active Support Instrumentation](#active-support-instrumentation) - [Hook Points](#hook-points) - [endpoint_run.grape](#endpoint_rungrape) - [endpoint_render.grape](#endpoint_rendergrape) - [endpoint_run_filters.grape](#endpoint_run_filtersgrape) - [endpoint_run_validators.grape](#endpoint_run_validatorsgrape) - [format_response.grape](#format_responsegrape) - [Subscribe to Hooks](#subscribe-to-hooks) - [Monitoring Products](#monitoring-products) - [Contributing to Grape](#contributing-to-grape) - [Security](#security) - [License](#license) - [Copyright](#copyright)

Generated by 🚫 Danger

[alexanderadam]

Is the reason for the manual TOC that you don't like the integrated one from GitHub?

[dblock]

The README TOC existed before GitHub had the feature I imagine. I am not against removing it along with the Danger check.