Repair CI and more update docs

Author: ckormanyos

README.md

@@ -357,6 +357,6 @@ and the library include files in [`include/` and its subfolders](./include/)
 (with two exceptions for the sources, as mentioned below)
 are licensed under [GNU General Public License Version 3](./COPYING3) or higher.
 
-The [example codes](./examples/) and two library source files
+All of the [example codes](./examples/) and also two library source files
 (namely `functexcept.cc` and `math.cc` in [`src/`](./src/))
 are subject to the terms of the [Mozilla Public License Version 2.0](./COPYING.MPLv2).

examples/cmath/Makefile

@@ -37,7 +37,7 @@ $(TARGET).hex: $(TARGET).elf
 	avr-objcopy -O ihex -j .data -j .text $(TARGET).elf $(TARGET).hex
 
 $(TARGET).elf: $(OBJECTS)
-	avr-g++ $(LDFLAGS) -mmcu=$(MCU) -mdouble=64 -mlong-double=64 $(OBJECTS) -o $(TARGET).elf
+	avr-g++ $(LDFLAGS) -mmcu=$(MCU) $(OBJECTS) -o $(TARGET).elf
 
 $(BUILD_DIR)/%.cpp.o: %.cpp
 	@mkdir -p $(BUILD_DIR)