[Docs] Added a development section to the readme. (See #9)

README.md

@@ -7,7 +7,6 @@ the configured actor will be turn on for example.  The `avm-motion-triggerd`
 daemon can be configured to send user defined actions, like turn an actor on,
 off or just toggle it.
 
-- [About the project](#about-the-project)
 - [About the setup](#about-the-setup)
 - [Requirements](#requirements)
 - [Installation](#installation)
@@ -18,7 +17,6 @@ off or just toggle it.
   - [Process management](#process-management)
 - [Development](#development)
 
-## About the project
 ## About the setup
 ## Requirements
 ## Installation
@@ -46,5 +44,37 @@ avm-motion-triggerd.service`.
 
 ## Development
 
+The project is written in C and comes with a bulk of predefined GNU Make
+targets to speed up common development tasks. To get in touch just fork and
+clone the project, install/build the required dependencies and fire a `make
+build`.
+
+The most adorable targets are `clean build test` (in this order :)). While
+editing the man pages you can easily review the latest state with the `docs-*`
+targets. (currently there are: `docs-avmctl.1 docs-avm-motion-trigger.conf.5
+docs-avm-motion-triggerd.1`)
+
+The project comes with a whole bunch of simple test binaries which covers
+single aspects of the project en bloc.  All test cases can be easily accessed
+with their corresponding `test-*` and `test-mem-*` targets. The `test-mem-*`
+variants will be checked for memory leaks by valgrind. Here is a list of the
+currently available GNU Make targets:
+
+```
+test-ambient-light-level test-build-url test-config test-list-switches
+test-logger test-login test-mem-ambient-light-level test-mem-build-url
+test-mem-config test-mem-list-switches test-mem-logger test-mem-login
+test-mem-password-challenge test-mem-password-response test-mem-pidfile
+test-mem-pir-motion-detection test-mem-switch-off test-mem-switch-on
+test-mem-switch-toggle test-password-challenge test-password-response
+test-pidfile test-pir-motion-detection test-switch-off test-switch-on
+test-switch-toggle
+```
+
+Please mind the [Contribution Guide][] and the given [.editorconfig file][] if
+you plan to work on the project.
+
 [avm-motion-triggerd]: ../../wikis/man/avm-motion-triggerd.1.html
 [avm-motion-trigger.conf]: ../../wikis/man/avm-motion-trigger.conf.5.html
+[Contribution Guide]: CONTRIBUTING.md
+[.editorconfig file]: .editorconfig