docs: add Spanish README

[webbrain-one]

Adds README.es-ES.md alongside the original documentation.

Summary by CodeRabbit

• Documentation
  • Added Spanish-language documentation for Node Media Proxy.
  • Documented RTSP streaming over WebSockets, MPEG1 conversion, Redis-based feed tracking, and port reuse.
  • Included the technology stack and project roadmap.

[coderabbitai]

📝 Walkthrough

Walkthrough

Se añadió README.es-ES.md. El documento describe el flujo RTSP/WebSocket, la conversión mediante ffmpeg, la persistencia en Redis, la reutilización de puertos, el stack tecnológico y la hoja de ruta.

Changes

Documentación del proyecto

Layer / File(s)	Summary
README en español README.es-ES.md	Documenta el procesamiento de feeds RTSP mediante WebSockets, la conversión a MPEG1 con ffmpeg, el uso de Redis y las funcionalidades planificadas.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the addition of the Spanish README documented in the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@README.es-ES.md`:
- Around line 13-19: Corrige la jerarquía de encabezados en la sección posterior
a `# Node Media Proxy`: cambia `### Stack:` y `### Hoja de ruta` a encabezados
de nivel dos (`##`), sin modificar el contenido de esas secciones.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8530ea00-9225-4d55-86c4-473c445607c3

📥 Commits

Reviewing files that changed from the base of the PR and between fe7c6d8 and 3262b52.

📒 Files selected for processing (1)

• README.es-ES.md

[coderabbitai]

📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Corrige la jerarquía de encabezados de Markdown.

Después del encabezado # Node Media Proxy de la Line [3], ### Stack: salta directamente al nivel tres. Usa encabezados de nivel dos para Stack y Hoja de ruta.

Propuesta

-### Stack:
+## Stack:
...
-### Hoja de ruta
+## Hoja de ruta

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	### Stack:
	* Node.JS
	* Redis
	* FFMPEG
	### Hoja de ruta
	## Stack:
	* Node.JS
	* Redis
	* FFMPEG
	## Hoja de ruta

🧰 Tools

🪛 markdownlint-cli2 (0.23.2)

[warning] 13-13: Heading levels should only increment by one level at a time
Expected: h2; Actual: h3

(MD001, heading-increment)

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@README.es-ES.md` around lines 13 - 19, Corrige la jerarquía de encabezados en
la sección posterior a `# Node Media Proxy`: cambia `### Stack:` y `### Hoja de
ruta` a encabezados de nivel dos (`##`), sin modificar el contenido de esas
secciones.

Source: Linters/SAST tools