[TASK] Use a generated class/diagram list in the class diagram (#515)

This is another step towards auto-generating more of the class
diagram.

README.md

@@ -621,133 +621,101 @@ class Sabberworm\CSS\CSSList\Document#4 (2) {
 classDiagram
     direction LR
 
-    %% top namespace
+    %% Start of the part generated from the PHP code using tasuku43/mermaid-class-diagram
 
-    class OutputFormat {
+    class Renderable {
+        <<interface>>
     }
-
-    class OutputFormatter {
+    class DeclarationBlock {
     }
-
-    class Parser {
+    class RuleSet {
+        <<abstruct>>
     }
-
-    class ParserState {
+    class AtRuleSet {
     }
-
-    class Renderable {
+    class KeyframeSelector {
+    }
+    class AtRule {
         <<interface>>
     }
-
-    class Settings {
+    class Charset {
     }
-
-
-    %% namespace Comment
-
-    class Comment {
+    class Import {
     }
-    class Commentable {
-        <<interface>>
+    class Selector {
     }
-
-
-    %% namespace CSSList
-
-    class AtRuleBlockList {
+    class CSSNamespace {
     }
-    class CSSBlockList {
-        <<abstract>>
+    class Settings {
     }
-    class CSSList {
-        <<abstract>>
+    class Rule {
     }
-    class Document {
+    class Parser {
     }
-    class KeyFrame {
+    class OutputFormatter {
     }
-
-
-    %% namespace Parsing
-
-    class Anchor {
+    class OutputFormat {
     }
     class OutputException {
     }
-    class ParserState {
+    class UnexpectedEOFException {
     }
     class SourceException {
     }
-    class UnexpectedEOFException {
-    }
     class UnexpectedTokenException {
     }
-
-
-    %% namespace Property
-
-    class AtRule {
-        <<interface>>
+    class ParserState {
     }
-    class Charset {
+    class Anchor {
     }
-    class CSSNamespace {
+    class CSSBlockList {
+        <<abstruct>>
     }
-    class Import {
+    class Document {
     }
-    class KeyframeSelector {
+    class CSSList {
+        <<abstruct>>
     }
-    class Selector {
+    class KeyFrame {
     }
-
-
-    %% namespace Rule
-
-    class Rule {
+    class AtRuleBlockList {
     }
-
-
-    %% namespace RuleSet
-
-    class AtRuleSet {
+    class Color {
     }
-    class DeclarationBlock {
+    class URL {
     }
-    class RuleSet {
-        <<abstract>>
+    class CalcRuleValueList {
+    }
+    class ValueList {
+        <<abstruct>>
     }
-
-
-    %% namespace Value
-
     class CalcFunction {
     }
-    class CalcRuleValueList {
+    class LineName {
     }
-    class Color {
+    class Value {
+        <<abstruct>>
     }
-    class CSSFunction {
+    class Size {
     }
     class CSSString {
     }
-    class LineName {
-    }
     class PrimitiveValue {
-        <<abstract>>
+        <<abstruct>>
     }
-    class RuleValueList {
-    }
-    class Size {
+    class CSSFunction {
     }
-    class URL {
+    class RuleValueList {
     }
-    class Value {
-        <<abstract>>
+    class Commentable {
+        <<interface>>
     }
-    class ValueList {
-        <<abstract>>
+    class Comment {
     }
 
+    %% end of the generated part
+
+
     AtRule --|> Commentable
     AtRule --|> Renderable
     AtRuleBlockList --|> CSSBlockList