Add page for 404 error code

[gomzyakov]

Like in gomzyakov/good-first-issues.github.io#50

[akshitjain2004]

Can you assign this issue to me > @gomzyakov. Do you have any specific requirement?

[gomzyakov]

@akshitjain2004 Hello!

I assigned a task to you. No specific requirements, everything is as in the example)

[akshitjain2004]

@gomzyakov Hey actually I couldn't find the example. Can you please share a screenshot? So I can work on that

[gomzyakov]

@gomzyakov Hey actually I couldn't find the example. Can you please share a screenshot? So I can work on that

Example here gomzyakov/good-first-issues.github.io#50

[divyakelaskar]

Can i work on this one? (as currently there is no assignees)

[gomzyakov]

Can i work on this one? (as currently there is no assignees)

@divyakelaskar Yes, sure)