Update README.md

README.md

@@ -14,3 +14,7 @@ CREATE INDEX backlog_idx ON backlog USING gin(to_tsvector('simple', message));
 ```
 
 Third, install this and set it up via config.ini
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+The error image is from [xiprox/ErrorView](https://github.com/xiprox/ErrorView) and under Apache2.
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+The rest of this project is available under LGPLv2.1 or later.