fix minor issue with README, and fig3c example bash script

Makefile

@@ -0,0 +1,53 @@
+CC=gcc
+CFLAGS=-O2 
+LDLIBS=-lm -lgmp -lz
+NAME=$(shell uname -s)
+BIN_DIR1= Complexity_Multiplex
+BIN_DIR2= Reducibility_Multiplex
+
+
+CC_RUNS=$(shell \$($(CC) --version >/dev/null ))
+
+##$(info $$CC_RUNS is [${CC_RUNS}])
+
+#ifeq ($(CC_RUNS), "")
+ifdef CC_RUNS
+IS_CC_GCC=$(shell $(CC) --version 2>/dev/null | grep -Eic '(GCC)')
+##$(info $$IS_CC_GCC is [${IS_CC_GCC}])
+ifneq ($(IS_CC_GCC), 0)
+# compiler is GCC
+CFLAGS+=-fopenmp
+else
+IS_CC_ICC=$(shell $(CC) --version 2>/dev/null | grep -Eic 'Intel')
+##$(info $$IS_CC_ICC is [${IS_CC_ICC}])
+ifneq ($(IS_CC_ICC), 0)
+# compiler is Intel icc
+CFLAGS+=-qopenmp
+else
+IS_CC_CLANG=$(shell $(CC) --version 2>/dev/null | grep -Eic '(llvm|clang)')
+##$(info $$IS_CC_CLANG is [${IS_CC_CLANG}])
+ifeq ($(IS_CC_CLANG), 1)
+# compiler is CLANG
+LDLIBS+=-lomp
+CFLAGS+=-Xpreprocessor -fopenmp
+# ifeq ($(NAME),Darwin)
+# 	CFLAGS+=-Xpreprocessor -fopenmp
+# endif
+endif
+endif
+endif
+endif
+all:  complexity reducibility
+
+clean:
+	rm -f $(BIN_DIR1)/compute_complexity_multiplex $(BIN_DIR2)/reducibility_complexity
+
+complexity: $(BIN_DIR1)/Compute_Complexity_Multiplex.c
+	$(CC) $(CFLAGS) $^ $(LDLIBS) -o $(BIN_DIR1)/compute_complexity_multiplex
+
+
+reducibility: $(BIN_DIR2)/reducibility_complexity.c
+	$(CC) $(CFLAGS) $^ $(LDLIBS) -o $(BIN_DIR2)/reducibility_complexity
+
+
+