add the publish to marketplace doc (#700)

en/use-dify/publish/publish-to-marketplace.mdx

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+---
+title: Publish Apps to Marketplace
+sidebarTitle: Marketplace
+description: Publish your apps to Dify Marketplace and share them with the world
+icon: store
+---
+
+Publish your apps as templates to Dify Marketplace, where other Dify users can discover and use them.
+
+## Submit Templates
+
+To publish a template, submit it for review first. Once approved, it will be listed on Marketplace.
+
+<Note>
+  Before submission, make sure all plugins used in the app are **installed directly from Marketplace**.
+</Note>
+
+There are two ways to submit:
+
+<Tabs>
+    <Tab title="From Dify Studio">
+    <Info>
+        Available in [beta](https://github.com/langgenius/dify/releases/tag/1.14.0-rc1) environment only.
+    </Info>
+    In your app, click **Publish** > **Publish to Marketplace**.
+
+    This takes you to the [Creator Center](https://creators.dify.ai) where you can fill in the template details and submit for review.
+    </Tab>
+
+    <Tab title="In the Creator Center">
+    Export your app, then go to the [Creator Center](https://creators.dify.ai) and upload the export file. Fill in the template details and submit for review.
+    </Tab>
+</Tabs>
+
+## Template Writing Guidelines
+
+### Language Requirements
+
+Keep the template library consistent and searchable.
+
+**The following fields must be written in English**:
+
+- Template name
+- Overview
+- Setup steps
+
+**Inside the app, you can use any language (e.g. Chinese) for**:
+
+- Node names
+- Prompts / system messages
+- Messages shown to end-users
+
+If your template mainly targets non-English users, you can add a tag in the title. For example,
+`Stock Investment Analysis Copilot [ZH]`.
+
+### Template Name & Icon
+
+From the name alone, users should know where it runs and what it does.
+
+- Use a short English phrase, typically 3-7 words.
+- Recommended pattern: [Channel / target] + [core task], for example:
+    - WeChat Customer Support Bot
+    - CSV Data Analyzer with Natural Language
+    - Internal Docs Q&A Assistant
+    - GitHub Issue Triage Agent
+- Include keywords users might search for: channel names (Slack, WeChat, Email, Notion) and task names (Summarizer, Assistant, Generator, Bot).
+
+### Categories
+
+Help users discover your template when browsing or filtering by category.
+
+- Select only **1-3** categories that best describe your template.
+- Do not check every category just for exposure.
+
+### Language
+
+Help users discover your template via language filters.
+
+- Select the language(s) your template is designed for in real usage.
+- This refers to the language of the template's use case, input, or output — **not** the title or overview (which must be in English).
+
+### Overview
+
+In 2-4 English sentences, explain what it does and who it is for.
+
+<Info>You don't need to list prerequisites, inputs, or outputs here.</Info>
+
+**Recommended structure**
+
+1. Sentence 1: **What it does**
+
+    A one-sentence summary of the main function.
+2. Sentence 2-3: **Who and when**
+
+    Typical user roles or scenarios (support team, marketers, founders, individual knowledge workers, etc.).
+
+<Accordion title="Example: Description for Stock Investment Analysis Copilot">
+    This template creates a stock investment analysis copilot that uses Yahoo Finance tools to fetch news, analytics, and ticker data for any listed company.
+
+    It helps investors and analysts quickly generate structured research summaries, compare companies, and prepare reports without manually switching between multiple finance websites.
+</Accordion>
+
+### Setup Steps
+
+Write Setup steps as a numbered Markdown list (1., 2., 3.), with one short sentence per step, starting with a verb.
+
+A new user should be able to get the template running in a few minutes just by following these steps.
+
+**Writing principles**
+
+1. Follow the real setup order, usually:
+    1. Use/import the template
+    2. Connect accounts / add API keys
+    3. Connect data sources (docs, databases, sheets, etc.)
+    4. Optional customization (assistant name, tone, filters)
+    5. Activate the workflow and run a test
+
+2. Each step should answer:
+    - Where to click in the UI
+    - What to configure or fill in
+
+3. Aim for 3-8 steps. Too few feels incomplete; too many feels overwhelming.
+
+<Accordion title="Example: Setup Steps for Stock Investment Analysis Copilot (Yahoo Finance tools) ">
+  1. Click **Use template** to copy the “Investment Analysis Copilot (Yahoo Finance)” agent into your workspace.
+
+  2. Go to **Settings → Model provider** and add your LLM API key. For example, OpenAI, Anthropic, or another supported provider.
+
+  3. Open the agent's **Orchestrate** page and make sure the Yahoo Finance tools are enabled in the **Tools** section:
+    - `yahoo Analytics`
+    - `yahoo News`
+    - `yahoo Ticker`
+
+  4. (Optional) Customize the analysis style:
+     - In the **INSTRUCTIONS** area, adjust the system prompt to match your target users. For example, tone, report length, preferred language, or risk preference.
+     - Update the suggested questions in the **Debug & Preview** panel if you want different example queries.
+
+  5. Click **Publish** to make the agent available, then use the preview panel to test it:
+     - Enter a company name or ticker (e.g., `Nvidia`, `AAPL`, `TSLA`).
+     - Confirm that the copilot calls the Yahoo Finance tools and returns a structured investment analysis report.
+</Accordion>
+
+### Quick Checklist Before You Submit
+
+- The name is a short English phrase that clearly shows where it runs and what it does.
+- The overview uses 2-4 English sentences to explain the value and typical use cases.
+- Only 1-3 relevant categories are selected.
+- Setup steps are a clear numbered list.
+- Internal workflow texts and prompts are written in appropriate languages for your target users.