fix docs link

Changed files
+1 -1
+1 -1
README.md
··· 119 ## documentation 120 121 - [deployment guide](docs/deployment/environments.md) 122 - - [configuration](docs/configuration.md) 123 - [full documentation](docs/README.md)
··· 119 ## documentation 120 121 - [deployment guide](docs/deployment/environments.md) 122 + - [configuration](docs/backend/configuration.md) 123 - [full documentation](docs/README.md)