Completed README.md.

README.md

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 * Modify the HelloXwing.java file to print out to the **console** the xwing() method.
 * Run your program, verify an ascii-art X-Wing prints to the console, and save your changes.
 * Commit your changes back to your GitHub account and follow the video on doing a Pull request to the instructor account.
+
+*Questions assignment 
+
+1: In computer jargon, What is the difference between a statement and a comment?
+
+    * comment is a text for humans and not used or executed by computers.
+    and statement is a line og codes that performs and action.
+
+2: What does it mean to say that a program is portable?
+
+    * it means that we can run programs on different systems without any major change.
+
+3: in common English, what does the word compile mean?
+
+    * converting human code to a machine.
+
+4: what is an executable?Why is that word used as a noun?
+
+    * its a file that runs a computer program and the word is used as noun because it refers to a specific type of computer file that can be executed