added support for example templates/direct strings to commands who need it

added example templates for some commands
added the examples to documentation as well

abstracto-application/core/core-interface/src/main/java/dev/sheldan/abstracto/core/command/config/HelpInfo.java

@@ -3,9 +3,13 @@ package dev.sheldan.abstracto.core.command.config;
 import lombok.Builder;
 import lombok.Getter;
 
-@Getter @Builder
+@Getter
+@Builder
 public class HelpInfo {
     private String usage;
     private String longHelp;
+    private String example;
+    @Builder.Default
+    private boolean hasExample = false;
     private boolean templated;
 }