added help files for YaCy UI web pages

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+---
+page: htroot/env/grafics/donate.html
+help: help/env/grafics/donate.md
+title: donate
+package: proxy-embedded-static
+access: public
+kind: embedded-static-page
+backend_java: none
+---
+
+# donate
+
+## Purpose
+
+Donate is a static project-support page.
+
+Use it only to explain the support link embedded in the interface.
+
+## What You Can Do Here
+
+- Donate is a static project-support page.
+- Use it through the page or proxy context that includes it.
+- Treat it as a support view unless the parameters document a direct service call.
+
+## Page Architecture
+
+The page is built around a visible form and backend parameters. The visible controls are the starting point; hidden fields usually carry defaults, transaction data, or browser state.
+
+| Control | Meaning | Values or examples |
+| --- | --- | --- |
+| `os0` | Choice value. Options: `beneficial` = beneficial: 5 €, `generous` = generous: 25 €, `gracious` = gracious: 50 €. | `beneficial` = beneficial: 5 €, `generous` = generous: 25 €, `gracious` = gracious: 50 € |
+| `submit` | Submits the form. | `Donate!` |
+
+## Correct Use
+
+Use this page in the context where YaCy displays it. Embedded and static pages usually explain, wrap, or visualize another workflow; direct calls should stay minimal and read-only unless documented otherwise.
+
+## Access And Safety
+
+The page is normally public or read-only, unless the peer is configured to require authentication for all pages.
+
+## Automation And API
+
+No matching Java servlet was found for this template.
+
+| Endpoint | Method | Access | Backend |
+| --- | --- | --- | --- |
+| `https://www.paypal.com/cgi-bin/webscr` | `POST` | external | external service |
+
+### Parameter Guide
+
+The table explains values that an agent or script must set deliberately. Parameters not relevant to a task should be omitted or left at the page default.
+
+| Parameter | Meaning and valid values | Care |
+| --- | --- | --- |
+| `os0` | Choice value. Options: `beneficial` = beneficial: 5 €, `generous` = generous: 25 €, `gracious` = gracious: 50 €. | Set only when this option is part of the intended request; otherwise omit it and let YaCy use the page default. |
+| `submit` | Submit action for the form. Its meaning depends on the surrounding fields. | Changes stored data, configuration, or a running job. Use the authenticated action flow where required and verify the result. |
+
+Example request shape:
+
+```http
+POST https://www.paypal.com/cgi-bin/webscr
+Content-Type: application/x-www-form-urlencoded
+
+os0=...&submit=...
+```
+
+## What To Expect
+
+Expect a focused support view, embedded fragment, visual page, or proxy message. The important action usually happens on the page that linked here.
+
+## Related Pages
+
+- Related embedded work usually continues in the proxy page, portal page, or visualization that included this fragment.