Adds greencoda/confiq (#5284)

README.md

@@ -457,6 +457,7 @@ _Libraries for configuration parsing._
 - [configuration](https://github.com/BoRuDar/configuration) - Library for initializing configuration structs from env variables, files, flags and 'default' tag.
 - [configure](https://github.com/paked/configure) - Provides configuration through multiple sources, including JSON, flags and environment variables.
 - [configuro](https://github.com/sherifabdlnaby/configuro) - opinionated configuration loading & validation framework from ENV and Files focused towards 12-Factor compliant applications.
+- [confiq](https://github.com/greencoda/confiq) - Structured data format to config struct decoder library for Go - supporting multiple data formats
 - [confita](https://github.com/heetch/confita) - Load configuration in cascade from multiple backends into a struct.
 - [conflate](https://github.com/the4thamigo-uk/conflate) - Library/tool to merge multiple JSON/YAML/TOML files from arbitrary URLs, validation against a JSON schema, and application of default values defined in the schema.
 - [env](https://github.com/caarlos0/env) - Parse environment variables to Go structs (with defaults).