Fix Makefile echo escape codes (by removing them). (#418)

Makefile

@@ -231,7 +231,9 @@ clean:
 
 main: main.cpp ggml.o llama.o utils.o
 	$(CXX) $(CXXFLAGS) main.cpp ggml.o llama.o utils.o -o main $(LDFLAGS)
-	@echo "\x1b[36mrun ./main -h for help\x1b[0m"
+	@echo
+	@echo '====  Run ./main -h for help.  ===='
+	@echo
 
 quantize: quantize.cpp ggml.o llama.o utils.o
 	$(CXX) $(CXXFLAGS) quantize.cpp ggml.o llama.o utils.o -o quantize $(LDFLAGS)