Documentation of java_intro file

[MohammedHassan07]

Issue Id you have worked upon -

420

Briefly explain your program logic -

In this file I have copied the images from internet, and exact date of the release of the java language

Screenshots(Attach 2 screenshots of your own input and output) -

Attach here

Checklist:

Eg - If your code follow the below guidelines. Kindly change [] to [x]

All the conditions should be fulfilled for considering your code for merging -

• [x] I have mentioned the question as comment in my solution file.
  

• [] My code follows the guidelines of this project.
  

• [] I have performed a self-review of my own code.
  

• [] I have commented my code.
  

• [] My code gives the correct output.
  

• [] I confirm that I have not copied the code from anywhere. In case its found that I have copied even after successful merge then I can be banned from the repository and hacktoberfest.
  

• [x] I affirm that I strictly follow contributing guidelines and code of conduct.

[MohammedHassan07]

@SarthakKeshari Please check the file which I have added, Thank you

[MohammedHassan07]

@SarthakKeshari Kindly check the java_intro1 file