Web console: adding format notice for CSV and TSV

[vogievetsky]

Adds a warning that the CSV or TSV sample contains newlines in values which is allowed in the format but Druid will not accept it in the expected way. Adding this because I got really tripped up by this myself.

Try it with:

"a","b","c","d","e"
"hello
world",2,3,4,5

Feedback on copy very welcome.

Also changed the links from http://ndjson.org/ to https://jsonlines.org (due to ndjson/ndjson-spec#35 (comment))

[ektravel]

Suggested change

	This data looks like multi-line formatted JSON object. For Druid to parse a text file it
	This data looks like a multi-line formatted JSON object. For Druid to parse a text file it

[ektravel]

Suggested change

	{`This ${formatLabel} data has values that contain new lines. Druid requires ${formatLabel} files to have one event per line and thus ${formatLabel} values can not contain new lines. Consider encoding new lines in the values of your ${formatLabel} with some special delimiter.`}
	{`This ${formatLabel} data has values that contain new lines. Druid requires ${formatLabel} files to have one event per line, so ${formatLabel} values cannot contain new lines. Consider encoding new lines in the values of your ${formatLabel} with some special delimiter.`}

[ektravel]

Reviewed the copy.