chore: fix README links, add LICENSE

[Vlada-Q]

Two broken links, both from the shared README template.

• [All other integrations here](qonversion.io/integrations) has no scheme. GitHub renders it as a repository-relative path, so on the rendered README it resolves to github.com/qonversion/unity-sdk/blob/main/qonversion.io/integrations and 404s. Now https://qonversion.io/integrations (200).
• https://documentation.qonversion.io/discuss-new in Have a question? is left over from readme.io and returns 404 — it is not among the redirects the docs site keeps. That is the link a reader follows when something did not work. It now points at https://qonversion.io/contact-us (200), next to the existing GitHub issues link. The same target is used in the other SDK READMEs so the support channel is one and the same everywhere.

Typo. «paywals» → «paywalls» in the A/B test bullet (it is copied across the READMEs).

No licence text in the repository. The README ends with «Qonversion SDK is available under the MIT license» and carries an MIT badge, but there is no LICENSE file and the GitHub API reports license: null for this repository — so formally the licence exists only as a claim. For a team running a legal review before adopting an SDK, that is a stopper.

Added LICENSE with the MIT text copied from qonversion-ios-sdk, copyright holder unchanged (Qonversion team <hi@qonversion.io>). The badge now links to that file instead of the #license anchor inside the README.

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Scope is deliberately narrow: links, licence, install, typo. Positioning, the opening paragraph, the bullets, the banner images and the version badge are untouched — those belong to the README template being rewritten separately.

Opened from a fork, so the review request could not be set from here — @SpertsyanKM, this one is for you.

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📥 Commits

Reviewing files that changed from the base of the PR and between f83ea12 and ffd85d0.

📒 Files selected for processing (2)

• LICENSE
• README.md

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📝 Walkthrough

Walkthrough

The PR adds an MIT LICENSE file and updates four README entries: the license badge link, integrations URL, paywalls spelling, and contact form link.

Changes

License and README documentation

Layer / File(s)	Summary
License and README documentation LICENSE, README.md	Adds the MIT license text. Updates README links and corrects the paywalls spelling. The contact link now points to the Qonversion contact form.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to ffd85

The documentation and licensing updates are ready to merge with no identified production impact.

🚥 Pre-merge checks | ✅ 7 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The title describes the README link fixes and LICENSE addition, but it does not name the affected product or system area, such as the Unity SDK.	Update the title to include the affected area and outcome, for example: "chore: update Unity SDK README links and add MIT LICENSE".

✅ Passed checks (7 passed)

Check name	Status	Explanation
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.
Behavior And Regression Safety	✅ Passed	PASS. The diff changes only README links, a typo, and the MIT license file. The local LICENSE target exists, and both new external URLs returned HTTP 200. No executable behavior, assertion, safety g…
Security And Tenant Isolation	✅ Passed	The pull request changes only README.md and a new non-executable LICENSE file. The changes update links, correct a typo, and add MIT license text. The authoritative diff shows no authentication, autho…
Contract And Data Compatibility	✅ Passed	The authoritative diff changes only README.md and adds LICENSE. The README edits are links, a typo, and badge text. The new file contains MIT license text. No API, event, database, configuration, queu…
Rollout And Recovery Evidence	✅ Passed	The pull request changes only README links, README wording, and adds a LICENSE text file. The diff contains no production code, configuration, infrastructure, deployment, or migration changes. The rol…
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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