#590 add explanation for Command pattern
#590 add explanation for Command pattern

mookkiah/java-design-patterns,mookkiah/java-design-patterns,javaseeds/java-design-patterns,mookkiah/java-design-patterns,javaseeds/java-design-patterns,javaseeds/java-design-patterns,mookkiah/java-design-patterns,javaseeds/java-design-patterns