DEFLATE in ZLIB

[bc-pi]

maybe adjust the language around DEFLATE and ZLIB per this thread

Originally posted by @bc-pi in #80 (comment)

[c2bo]

Copied over, to have everything in the issue here:
This is the current text:

The complete byte array is compressed using the "DEFLATE" {{RFC1951}} compression method and stored using the "ZLIB" {{RFC1950}} data format. Implementations are RECOMMENDED to use the highest compression level available.

This is the proposal:

The complete byte array is compressed using DEFLATE {{RFC1951}} inside the ZLIB {{RFC1950}} data format. Implementations are RECOMMENDED to use the highest compression level available.

I agree that the current text is a bit weird and I wasn't really sure how to formulate it better when writing it.

[bc-pi]

More context copied over via Screenshot: