added install to makefile and readme

Makefile

@@ -2,9 +2,16 @@ CC = gcc
 CFLAGS = -Wall -Wextra
 TARGET = cpetrat
 SRC = cpetrat.c
+PREFIX = /
 
 $(TARGET): $(SRC)
 	$(CC) $(CFLAGS) -o $(TARGET) $(SRC)
 
+install: $(TARGET)
+	install -D $(TARGET) $(DESTDIR)$(PREFIX)/bin/$(TARGET)
+
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/bin/$(TARGET)
+
 clean:
 	rm -f $(TARGET)

README.md

@@ -0,0 +1,10 @@
+# take care of your little rat!
+
+# installing: 
+```term
+make && make install
+```
+
+that's pretty much it lol
+
+it saves its state to ~/.local/share/rat