Update makefile to correctly compile the project

The make command was running the tests but not compiling the project.
Also added a missing matrix destroy to free the memory.

README.md

@@ -15,3 +15,8 @@ Use this command to compile the project.
 > `make clean`
 
 Use this command to clean the project.
+
+### Run the tests
+> `make run_tests`
+
+Use this command to start the tests.
\ No newline at end of file

main.c

@@ -18,6 +18,7 @@ int main() {
     matrix_init(&mat, m, n, val);
     printf("Empty matrix %dx%d\n", m, n);
     matrix_print(mat);
+    matrix_destroy(&mat);
     // Init from array
     matrix_init_from_array(&mat, m, n, data, s);
     printf("Matrix %dx%d from array\n", m, n);

makefile

 LIB=-lm
 CC=gcc -Wall -Wextra -g
 
-run_tests: tests
-	./$<
-
 matrix: matrix.o main.o
 	$(CC) $^ -fsanitize=address -fsanitize=leak -o $@ $(LIB)
 
+run_tests: tests
+	./$<
+
 tests: test.o matrix.o
 	$(CC) $^ -fsanitize=address -fsanitize=leak -o $@ $(LIB)