Polish Makefile

Replace `echo` with builtin `info` command

Makefile

@@ -1,20 +1,20 @@
 .PHONY: test
 
 test: bin/s7 demo/.godot
-	@echo 🧪 Running tests
+	$(info 🧪 Running tests)
 	bin/s7 test/test-main.scm
 
 bin/s7: s7/s7.c
-	@echo ⚙️ Building scheme interpreter
+	$(info 🛠️ Building scheme interpreter)
 	gcc s7/s7.c -o bin/s7 -DWITH_MAIN -DWITH_SYSTEM_EXTRAS -DWITH_C_LOADER=0 -I. -O2 -g -ldl -lm
 
 SRC_FILES := $(shell find src -type f ! -name "*.os")
 DEMO_FILES := $(shell find demo -type f -name "*.tscn" -or -name "*.scm")
 
 demo/.godot: $(SRC_FILES) $(DEMO_FILES)
-	@echo ⚙️ Building extension
+	$(info 🛠️ Building extension)
 	@scons
-	@echo 📦 Importing test scene
+	$(info 📦 Importing test scene)
 	godot --path demo --headless --import
 
 .PHONY: run