0.15.5 change readme relative path

[tomohisa]

What's Changed

• Update sample project. by @MOTOO11 in Update sample project. #177
• change appsettings item names by @tomohisa in change appsettings item names #179
• fix readme path by @tomohisa in fix readme path #181
• change readme relative path by @tomohisa in change readme relative path #183

Full Changelog: 0.15.4...0.15.5

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This discussion was created from the release 0.15.5 change readme relative path.