style: moved functions around

internal/engine/engine.go

@@ -1,5 +1,5 @@
 // Package "engine" provides an extensible interface for users to interfact with
-// lambda calculus.
+// λ-calculus.
 package engine
 
 import (
@@ -8,14 +8,14 @@ import (
 	"git.maximhutz.com/max/lambda/pkg/lambda"
 )
 
-// A process for reducing one lambda expression.
+// A process for reducing one λ-expression.
 type Engine struct {
 	Config     *config.Config
 	Expression *lambda.Expression
 	emitter.Emitter
 }
 
-// Create a new engine, given an unreduced lambda expression.
+// Create a new engine, given an unreduced λ-expression.
 func New(config *config.Config, expression *lambda.Expression) *Engine {
 	return &Engine{Config: config, Expression: expression}
 }