Update README.md

README.md

@@ -11,16 +11,16 @@ By default, makefile uses `convert` file of ImageMagick software, but you can ch
 make CC=<executable name>
 ```
 or by changing the following line in a makefile
-```
-CC = magick
+```make
+CC = convert
 ```
 
 Also, the default image filename make is looking for is `source.png`, and you can change that either passing the new filename as a parameter
-```
+```bash
 make SOURCE=<image filename>
 ```
 or by changing the following line
-```
+```make
 SOURCE ?= <image filename>
 ```