Resolves #63: Update README

README.md

@@ -5,27 +5,71 @@
 ![CodeQL](https://github.com/magicsunday/webtrees-pedigree-chart/actions/workflows/codeql-analysis.yml/badge.svg)
 
 
+<!-- TOC -->
+* [Pedigree chart](#pedigree-chart)
+  * [Installation](#installation)
+    * [Manual installation](#manual-installation)
+      * [Configuration](#configuration)
+      * [Usage](#usage)
+    * [Using Composer](#using-composer)
+    * [Using Git](#using-git)
+  * [Development](#development)
+    * [Run tests](#run-tests)
+<!-- TOC -->
+
+
 # Pedigree chart
-This module provides an SVG pedigree chart for the [webtrees](https://www.webtrees.net) genealogy application. It 
-is capable to display up to 25 ancestor generations of an individual.
+This module provides an SVG pedigree chart for the [webtrees](https://www.webtrees.net) genealogy application.
+It is capable of displaying up to 25 generations of ancestors from an individual.
+
+**But beware, if you select too many generations, it may take a while and even slow down your system significantly.**
 
 ![pedigree-chart-3-generations](assets/pedigree-chart-top-bottom.png)
 *Fig. 1: A five-generations pedigree chart (drawn top to bottom)*
 
 ![pedigree-chart-5-generations](assets/pedigree-chart-5-generations.png)
 *Fig. 2: A five-generations pedigree chart (drawn left to right)*
 
-**Caution: If you are rendering a lot of generations, it may take a while and even slow down your system.**
 
 ## Installation
 Requires webtrees 2.2.
 
+There are several ways to install the module. The method using [composer](#using-composer) is suitable
+for experienced users, as a developer you can also use [git](#using-git) to get a copy of the repository. For all other users,
+however, manual installation is recommended.
+
+### Manual installation
+To manually install the module, perform the following steps:
+
+1. Download the [latest release](https://github.com/magicsunday/webtrees-pedigree-chart/releases/latest) of the module.
+2. Upload the downloaded file to your web server.
+3. Unzip the package into your ``modules_v4`` directory.
+4. Rename the folder to ``webtrees-pedigree-chart``
+
+If everything was successful, you should see a subdirectory ``webtrees-pedigree-chart`` with the unpacked content
+in the ``modules_v4`` directory.
+
+Now the module has to be activated within Webtrees.
+
+#### Configuration
+Go to the control panel (admin section) of your installation and scroll down to the ``Modules`` section. Click
+on ``Charts`` (in subsection Genealogy). Enable the ``Pedigree chart`` custom module (optionally disable the original
+installed pedigree chart module) and save your settings.
+
+![control-panel-modules](assets/control-panel-modules.png)
+*Fig. 3: Control panel - Module administration*
+
+#### Usage
+At the charts' menu, you will find a new link called `Pedigree chart`. Use the provided configuration options
+to adjust the layout of the charts according to your needs.
+
+
 ### Using Composer
-To install using [composer](https://getcomposer.org/), just run the following command from the command line 
-at the root directory of your webtrees installation.
+Typically, to install with [composer](https://getcomposer.org/), just run the following command from the command line,
+from the root of your Webtrees installation.
 
 ``` 
-composer require magicsunday/webtrees-pedigree-chart:* --update-no-dev
+composer require magicsunday/webtrees-pedigree-chart --update-no-dev
 ```
 
 The module will automatically install into the ``modules_v4`` directory of your webtrees installation.
@@ -35,6 +79,16 @@ To remove the module run:
 composer remove magicsunday/webtrees-pedigree-chart --update-no-dev
 ```
 
+Then follow the steps described in [configuration](#configuration) and [usage](#usage).
+
+#### Latest version
+If you are using the development version of Webtrees (main branch), you may also need to install the development
+version of the module. For this, please use the following command:
+```
+composer require magicsunday/webtrees-pedigree-chart:dev-master --update-no-dev
+```
+
+
 ### Using Git
 If you are using ``git``, you could also clone the current master branch directly into your ``modules_v4`` directory 
 by calling:
@@ -43,27 +97,7 @@ by calling:
 git clone https://github.com/magicsunday/webtrees-pedigree-chart.git modules_v4/webtrees-pedigree-chart
 ```
 
-### Manual installation
-To manually install the module, perform the following steps:
-
-1. Download the [latest release](https://github.com/magicsunday/webtrees-pedigree-chart/releases/latest).
-2. Upload the downloaded file to your web server.
-3. Unzip the package into your ``modules_v4`` directory.
-4. Rename the folder to ``webtrees-pedigree-chart``
-
-
-## Enable module
-Go to the control panel (admin section) of your installation and scroll down to the ``Modules`` section. Click
-on ``Charts`` (in subsection Genealogy). Enable the ``Pedigree chart`` custom module (optionally disable the original
-installed pedigree chart module) and save your settings.
-
-![control-panel-modules](assets/control-panel-modules.png)
-*Fig. 3: Control panel - Module administration*
-
-
-## Usage
-At the charts' menu, you will find a new link called `Pedigree chart`. Use the provided configuration options
-to adjust the layout of the charts according to your needs.
+Then follow the steps described in [configuration](#configuration) and [usage](#usage).
 
 
 ## Development