2020 Compression: request instead of response

[dtikhonov]

URL
https://almanac.httparchive.org/en/2020/compression#what-type-of-content-should-we-compress

Describe the issue
The use of the word "request" instead of "response" is inexact. Examples:

The figure shows the percent of requests of a certain content type using either Brotli [...]

and

[...] the percent of image requests that employ either Brotli [...]

Expected behavior
Certainly, it is the response that is compressed.

[tunetheweb]

Fair point. In HTTP Archive parlance it's measured in the requests table but yes it's still the response that is compressed. Fixed in #1911 along with a number of other edits.