chore(README.md): update images and available languages section

docs(README.md): update contribution instructions and error reporting section

feat(translations): add German translation of Monero for Merchants flyer and README.md file
feat(translations): add images for German translation of Monero for Merchants flyer

feat(translation-german.md): add German translation for page 1 and page 2 of Monero for Merchants booklet
feat(Monero for Merchants Booklet - english.pdf): add English version of Monero for Merchants booklet

feat(README.md): add Monero for Merchants booklet in English
feat(README.md): add download link for PDF
feat(README.md): add option to create an issue for spelling or other mistakes
feat(README.md): add images for page 1, page 2, preview 1, and preview 2

feat(translation-english.md): add English translation for page 1 and page 2 of the Monero for Merchants website

translations/en/README.md

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+# Monero for Merchants
+
+A printable booklet to attract merchants to accept Monero.
+
+##[⤓ Download PDF](./Monero%20for%20Merchants%20Booklet%20-%20english.pdf)
+
+Found a spelling or other mistake? Feel free to [create an issue](https://github.com/ASchmidt1024/monero-for-merchants-booklet/issues/new/choose). Thank you.
+
+![Page 1](images/Screenshot%202023-08-31%20at%2007.50.14.png)
+
+![Page 2](images/Screenshot%202023-08-31%20at%2007.50.18.png)
+
+![Preview 1](images/Screenshot%202023-08-31%20at%2007.50.24.png)
+
+![Preview 2](images/Screenshot%202023-08-31%20at%2007.50.28.png)

translations/en/translation-english.md

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+# Page 1
+
+The digital future of cash!
+
+Monero for Merchants
+
+monero.eco
+
+---
+
+Why Monero?
+
+Privacy
+
+Monero transactions are inherently private and untraceable.
+
+Security
+
+Through the use of advanced cryptographic techniques, the receipt of payments is secure and unalterable.
+
+Acceptance
+
+Accept payments from customers locally or worldwide without expensive fees or waiting times.
+
+Decentralisation
+
+Monero is a community currency that is not controlled by a central authority.
+
+“Smartphone with internet and off you go!”
+
+---
+
+Be part of the revolution
+
+Take the first step today!
+
+With Monero, you are not only a trader, but also a pioneer in the new era of digital commerce. It's not just a question of technology, but also of trust, community and the future.
+
+# Page 2
+
+As easy as cash, only digital!
+
+Step 1:
+
+Install a Monero wallet on your smartphone. There are many trusted and free apps in the App Store, Play Store and F-Droid. Cake Wallet, Monerujo, MyMonero and Mysu have proven themselves.
+
+Step 2:
+
+Generate a QR code with the amount to be paid directly in the Wallet app for each sale.
+
+Step 3:
+
+Show the QR code to your customer. They simply scan it with their own Monero wallet and confirm the payment. Done!
+
+“Payments are secure and unchangeable”
+
+---
+
+Advantages
+
+For your business
+
+**Fast transactions**: Receive payments in almost real time.
+
+**Low fees**: No credit card or bank fees.
+
+**New customers**: Appeal to the growing community of crypto enthusiasts.
+
+**Future-proof**: Stay up to date with technological developments and trends.
+
+---
+
+“Thanks,
+that you accept Monero.”
+
+monero.eco
+
+---