Adjust docs based on PR review feedback

Author: tkan145

CHANGELOG.md

@@ -19,7 +19,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Support Financial-grade API (FAPI) - Baseline profile [PR #1465](https://github.com/3scale/APIcast/pull/1465) [THREESCALE-10973](https://issues.redhat.com/browse/THREESCALE-10973)
 
-- Added `APICAST_PROXY_BUFFER_SIZE` variable to allow configure the size of the buffer used for handling the response received from the proxied server. [PR #1473](https://github.com/3scale/APIcast/pull/1473), [THREESCALE-8410](https://issues.redhat.com/browse/THREESCALE-8410)
+- Added the `APICAST_PROXY_BUFFER_SIZE` variable to allow configuration of the buffer size for handling response from the proxied servers. [PR #1473](https://github.com/3scale/APIcast/pull/1473), [THREESCALE-8410](https://issues.redhat.com/browse/THREESCALE-8410)
 
 ## [3.15.0] 2024-04-04
 

doc/parameters.md

@@ -529,7 +529,7 @@ Sets the maximum size of shared memory used by batcher policy. The accepted [siz
 **Default:** 4k|8k;
 **Value:** string
 
-Sets the size of the buffer used for handling the response received from the proxied server. This variable will set both [`proxy_buffer` NGINX directive](https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_buffers) and [`proxy_buffer_size` NGINX directive](https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_buffer_size). By default, the buffer size is equal to one memory page. This is either 4K or 8K, depending on a platform.
+Sets the size of the buffer used for handling the response received from the proxied server. This variable sets both [`proxy_buffer` NGINX directive](https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_buffers) and [`proxy_buffer_size` NGINX directive](https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_buffer_size). By default, the buffer size is equal to one memory page. This is either 4 KiB or 8 KiB, depending on a platform.
 
 ### `OPENTELEMETRY`