translation: Translate the aggregator-microservices readme to Spanish [Issue #2335 (Task of issue #2277 )] (#2338)

* Translate:  Translate the aggregator-microservices readme to Spanish [Issue #2335 (Task of issue #2277 )]

* Translate:  Translate the aggregator-microservices readme to Spanish [Issue #2335 (Task of issue #2277 )]

* Update README.md

* Restored translated YAML Frontmatter keys to right words not translated and minor new changes

Minor new changes are at YAML Frontmatter variables values of lines 2 and 3 where have switched the order of translated words to homogeinize the belowing structure of that order like figured at following lines 6,7 and 8 (First english term and then Spanish translation between parenthesis)

* Update localization/es/aggregator-microservices/README.md

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>

* Update localization/es/aggregator-microservices/README.md

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>

* Update localization/es/aggregator-microservices/README.md

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>

* Update localization/es/aggregator-microservices/README.md

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>

* Update localization/es/aggregator-microservices/README.md

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>

Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>