Sync user guide with config defaults changes

PRs #6226 and #6143 changed the configuration defaults but didn't update
all the configuration defaults docs in the user guide.

This PR updates the user guide to be in sync with the defaults.

Signed-off-by: Stevo Slavić <sslavic@gmail.com>

docs/user-guide/nginx-configuration/configmap.md

@@ -99,17 +99,17 @@ The following table shows a configuration option's name, type, and the default v
 |[brotli-level](#brotli-level)|int|4|
 |[brotli-types](#brotli-types)|string|"application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component"|
 |[use-http2](#use-http2)|bool|"true"|
-|[gzip-level](#gzip-level)|int|5|
+|[gzip-level](#gzip-level)|int|1|
 |[gzip-types](#gzip-types)|string|"application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component"|
 |[worker-processes](#worker-processes)|string|`<Number of CPUs>`|
 |[worker-cpu-affinity](#worker-cpu-affinity)|string|""|
 |[worker-shutdown-timeout](#worker-shutdown-timeout)|string|"240s"|
 |[load-balance](#load-balance)|string|"round_robin"|
 |[variables-hash-bucket-size](#variables-hash-bucket-size)|int|128|
 |[variables-hash-max-size](#variables-hash-max-size)|int|2048|
-|[upstream-keepalive-connections](#upstream-keepalive-connections)|int|32|
+|[upstream-keepalive-connections](#upstream-keepalive-connections)|int|320|
 |[upstream-keepalive-timeout](#upstream-keepalive-timeout)|int|60|
-|[upstream-keepalive-requests](#upstream-keepalive-requests)|int|100|
+|[upstream-keepalive-requests](#upstream-keepalive-requests)|int|10000|
 |[limit-conn-zone-variable](#limit-conn-zone-variable)|string|"$binary_remote_addr"|
 |[proxy-stream-timeout](#proxy-stream-timeout)|string|"600s"|
 |[proxy-stream-responses](#proxy-stream-responses)|int|1|
@@ -630,7 +630,7 @@ Enables or disables [HTTP/2](http://nginx.org/en/docs/http/ngx_http_v2_module.ht
 
 ## gzip-level
 
-Sets the gzip Compression Level that will be used. _**default:**_ 5
+Sets the gzip Compression Level that will be used. _**default:**_ 1
 
 ## gzip-min-length