docs: Correct GPG setup instructions (#3464)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>

Author: brosssh

README.md

@@ -81,10 +81,12 @@ To start using this template, follow these steps:
 and the [About](patches/build.gradle.kts#L5-L11))
 3. Update dependencies in the [libs.versions.toml](gradle/libs.versions.toml) file
 4. [Create a pass-phrased GPG master key and subkey](https://mikeross.xyz/create-gpg-key-pair-with-subkeys/)
-   1. Add the private key as a secret named [GPG_PRIVATE_KEY](.github/workflows/release.yml#L52) to your repository
-   2. Add the passphrase as a secret named [GPG_PASSPHRASE](.github/workflows/release.yml#L53) to your repository
-   3. Add the fingerprint of the GPG subkey as a variable named [GPG_FINGERPRINT](.github/workflows/release.yml#L54) to your repository
-5. Set up the [README.md](README.md) file[^1] (e.g, title, description, license, summary of the patches
+5. Add the following GitHub secrets:
+   1. [GPG_PRIVATE_KEY](.github/workflows/release.yml#L52): The ASCII-armored GPG key
+   2. [GPG_PASSPHRASE](.github/workflows/release.yml#L53): The passphrase for the GPG key
+6. Add the following GitHub variables:
+   1. [GPG_FINGERPRINT](.github/workflows/release.yml#L54): The fingerprint of the GPG key
+7. Set up the [README.md](README.md) file[^1] (e.g, title, description, license, summary of the patches
 that are included in the repository), the [issue templates](.github/ISSUE_TEMPLATE)[^2]  and the [contribution guidelines](CONTRIBUTING.md)[^3]
 
 🎉 You are now ready to start creating patches!