Improve static parts of the README.md documentation

[skip ci]

README_ABOUT.md

@@ -17,27 +17,37 @@
 > * Creating a module with a particular name takes ownership of that package name and everything beneath it.
 > * As the owner of that namespace, any sub-packages may be grouped into sub-modules as desired so long as no package is in two modules.
 
-This project applies that strategy to compile a _database_ of unique module names.
+This project applies that strategy to compile a _database_ of unique module names derived from artifacts published on Maven Central.
+
+- :cd: is ["an automatic module"](http://branchandbound.net/blog/java/2017/12/automatic-module-name), i.e. it declares a stable module name via an `AUTOMATIC-MODULE-NAME` entry in its `META-INF/MANIFEST.MF` file.
+- :dvd: denotes an explicit containing a compiled `module-info.class` module descriptor.
+
 
 ### Unique modules on Maven Central
 
 * [module-maven.properties](module-maven.properties) - Module name to Maven `${group}:${artifact}` ID database
 * [module-version.properties](module-version.properties) - Module name to current version database
-* [modules.properties](modules.properties) - Module name to source CSV line database
+* [modules.properties](modules.properties) - Module name to CSV source line database
 
 The _database_ consists of `.properties` files that are generated by parsing publications made to Maven Central.
 @sandermak's [modulescanner](https://github.com/sandermak/modulescanner) scans those publications and store module-related events in CSV files.
 
-This project is a single-file source-code Java program [JEP330](https://openjdk.java.net/jeps/330).
+## `Modules.java`
+
+This project contains the single-file source-code Java program ([JEP330](https://openjdk.java.net/jeps/330)): [`Modules.java`](src/Modules.java)
+
 With `{path}` pointing to a directory containing all CSV files to parse, you may create the `.properties` files locally.
+
 ```text
 java src/Modules.java {path}
 ```
 
-The program reads [maven-group-alias.properties](maven-group-alias.properties) to cherry-pick some non reverse-DNS aliases for well-known projects.
+### Reverse-DNS, with the exception of...
 
-- :cd: is ["an automatic module"](http://branchandbound.net/blog/java/2017/12/automatic-module-name), i.e. it declares a stable module name via an `AUTOMATIC-MODULE-NAME` entry in its `META-INF/MANIFEST.MF` file.
-- :dvd: denotes an explicit containing a compile `module-info.class` module descriptor.
+Initially, [maven-group-alias.properties](maven-group-alias.properties) is read to cherry-pick some non reverse-DNS aliases for well-known projects.
+
+A Maven group ID with all dashes `-` removed is also considered a match.
+For example, `org.f-oo-ba-r.b-az` is transformed to `org.foobar.baz` before checking the start of a module name.  
 
 ### Suspicious modules found on Maven Central