Update documentation

Author: vatsalpatel

README.md

@@ -1,2 +1,43 @@
 # GoFusion
 GoFusion is a utility library for Go that provides a collection of useful functions to simplify and enhance your code. It is inspired by the popular JavaScript library Lodash, but built specifically for Go.
+
+[![Go Reference](https://pkg.go.dev/badge/github.com/your-username/your-package-name.svg)](https://pkg.go.dev/github.com/vatsalpatel/gofusion)
+
+## Installation
+
+Use the following `go get` command to install the package:
+
+```
+go get github.com/vatsalpatel/gofusion
+```
+
+## Usage
+Import the package into your Go code:
+```
+import (
+    ut github.com/vatsalpatel/gofusion
+)
+
+func main() {
+	mapp := map[string]interface{}{
+		"key1": "value1",
+		"key2": "value2",
+		"key3": "value3",
+	}
+	ut.Keys[string](mapp)
+}
+
+```
+
+## Testing
+Run the following command:
+```
+go test
+```
+
+
+## Contributing
+Contributions are welcome! If you encounter any issues or have suggestions for improvements, please open an issue or submit a pull request on GitHub.
+
+## License
+This project is licensed under the MIT License - see the LICENSE file for details.

maps.go

@@ -1,6 +1,6 @@
 package fusion
 
-// Get returns the value if found, otherwise returns the zero value of the type
+// GetOrDefault returns the value if found, otherwise returns the provided default value
 func GetOrDefault[T comparable, V any](m map[T]V, key T, defaultValue V) V {
 	value, ok := m[key]
 	if !ok {