Mention context package in README

README.md

@@ -61,10 +61,12 @@ to handle NaNs gracefully can use Go's built-in panic/recover machanism to
 handle these efficiently: NaNs cause a panic with an ErrNaN which can be tested
 to distinguish NaNs from other causes of panic.
 
-On the other hand, Contexts (implemented in the [context](https://pkg.go.dev/github.com/db47h/decimal/context?tab=doc) sub-package) provide a
-form of quiet-NaNs whereby any NaN generated by an operation will make the
-context enter into an error state. Further operations with the context will be
-no-ops until (*Context).Err is called to check for errors.
+On the other hand, Contexts (implemented in the
+[context](https://pkg.go.dev/github.com/db47h/decimal/context?tab=doc)
+sub-package) provide a form of quiet-NaNs whereby any NaN generated by an
+operation will make the context enter into an error state. Further operations
+with the context will be no-ops until (*Context).Err is called to check for
+errors.
 
 Mantissae are always normalized, as a result, Decimals have a single possible
 representation: