added Makefile for unit test

.gitignore

@@ -1,4 +1,5 @@
 icscli
 .gitconfig
 *.o
+*.out
 tags

unit-tests/Makefile

@@ -0,0 +1,10 @@
+CC = gcc
+CFLAGS = -Wall -g -O0
+
+test_parse_ics:
+	$(CC) $(CFLAGS) test_parse_ics.c ../src/parse_ics.c ../src/string_handling.c ../src/list_handling.c ../src/date_time_handling.c ../src/read_until_string.c ../src/read_until_nl.c -o test_parse_ics.out
+	./test_parse_ics.out
+
+.PHONY:clean
+clean:
+	-rm -vf *.out

unit-tests/README.md

@@ -1,10 +0,0 @@
-For unit test `test_parse_ics.c`.
-
-compilation command:
-```
-gcc -Wall test_parse_ics.c ../src/parse_ics.c ../src/string_handling.c ../src/list_handling.c ../src/date_time_handling.c ../src/read_until_string.c ../src/read_until_nl.c
-```
-
-```
-./a.out
-```