Modifiying documentation for netbeans IDE plugin

[rohanjulka19]

When I downloaded the Netbeans plugin it was in zip format so I was not aware of what to do(silly me) . So I added a note which may help some users.

[ilgrosso]

There is no "If the downloaded plugin is in zip format", it is in zip format, please adjust.

Also, wrap the note into an asciidoctor's [TIP] block,

[rohanjulka19]

Yes sir

[rohanjulka19]

Is this ok
"The downloaded plugin is in zip format , change its extension to .nbm otherwise you won't be able to use it with NetBeans"

[ilgrosso]

You don't need to "change its extension", you need to unzip it.

[rohanjulka19]

I unzipped the file but was not able to add it as a plugin .

[ilgrosso]

Ah, correct it's .nbm indeed: why on earth you have downloaded as ZIP?

[ilgrosso]

Please close this PR, I don't see reasons to merge it.

[rohanjulka19]

I went to the link specified in the documentation and it downloads a zip file http://www.apache.org/dyn/closer.lua/syncope/2.0.7/syncope-ide-netbeans-2.0.7.nbm

[rohanjulka19]

Sorry for wasting your time

[ilgrosso]

np