Implemented enhancement files empty + invalid path

[Bullfrog666]

The enhancement .adoc files in Target/structurizr/enhancement seems to be empty, is it normal and what is these files purpous.
+
.adoc files in src/docs/asciidoc/ include enhancers content with the line :
include::{enhancements-dir}/_10-deployment.adoc[leveloffset=+1]

But "{enhancements-dir}" seems not found (even if defined in the pom.xml) witch leads us to this error when rendering the .adoc file :
Unresolved directive in 10-deployment.adoc - include::{enhancements-dir}/_10-deployment.adoc[leveloffset=+1]

[Riduidel]

It is not found in IDE because we don't set an enhancements-dir default value in fil header.
This can be fixed by adding the following line as file header

:enhancements-dir: ${A_PATH_TO_DETERMINE}

[Riduidel]

This one is a misunderstanding that should be solved by adding the correct comments in the various .adoc files, maybe even a link to this issue.

To make things clear, most of the technical job of aadarchi is to create some asciidoc files in target/structurizr/enhancements directory. But to have those files included in documentation, we must have some "hook code". And those includes are the mentionned hook code.

So the work to do is: in each .adoc file of the archetype maven module (see in ̀src\docs\asciidoc`), add the following comment

There is no reaseon for the file included below to exist, since it is created by aadarchi execution.
If you see an error in your IDE, don't worry, the maven build will have the correct paths set.
See #99 for more details