message: help/documentation menu: fix docs links
diff: @@ -148,7 +148,7 @@ export default class MenuBuilder {
  label: 'Documentation',
  click() {
  shell.openExternal(
  - 'https://nurpax.github.io/petmate/docs'
  + 'https://nurpax.github.io/petmate/'
  );
  }
  },
  @@ -233,7 +233,7 @@ export default class MenuBuilder {
  label: 'Documentation',
  click() {
  shell.openExternal(
  - 'https://nurpax.github.io/petmate/docs'
  + 'https://nurpax.github.io/petmate/'
  );
  }
  },
  