chore: update format and accept docs

updating example to match SHOULD from specs
ipfs/specs#478

docs/reference/http/gateway.md

@@ -60,28 +60,28 @@ This mode of operation removes the need for trusting gateway returns correct dat
 
 #### Example: fetching an entire DAG as a CAR stream from a public gateway
 
-Using `Accept` HTTP header with [application/vnd.ipld.car](https://www.iana.org/assignments/media-types/application/vnd.ipld.car) type:
+To request [application/vnd.ipld.car](https://www.iana.org/assignments/media-types/application/vnd.ipld.car) response type:
 
 ```bash
-$ curl -H "Accept: application/vnd.ipld.car" "https://ipfs.io/ipfs/bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q" > dag.car
+$ curl -H "Accept: application/vnd.ipld.car" "https://ipfs.io/ipfs/bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q?format=car" -L > dag.car
 $ ipfs dag import dag.car
 ```
 
 ::: tip
 
-An alternative is to pass `?format=car` URL parameter:
+A Client SHOULD include the [`format` query parameter](https://specs.ipfs.tech/http-gateways/trustless-gateway/#format-request-query-parameter) in the request URL, ideally in addition to the [`Accept` header](https://specs.ipfs.tech/http-gateways/trustless-gateway/#accept-request-header). This provides the best interoperability and ensures consistent HTTP cache behavior across various gateway implementations.
 
 <https://ipfs.io/ipfs/bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q?format=car>
 
-::: 
+:::
 
 ::: tip Verify CAR without running full IPFS node
 
 CAR verification does not require running IPFS node. Clients can leverage standalone tools and libraries such as [ipfs-car](https://www.npmjs.com/package/ipfs-car):
 
 ```bash
 $ npm i -g ipfs-car
-$ curl "https://ipfs.io/ipfs/bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q?format=car" | ipfs-car
+$ curl "https://ipfs.io/ipfs/bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q?format=car" -L | ipfs-car
 $ ls ./bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q/
 1007 - Sustainable - alt.txt
 1007 - Sustainable - transcript.txt
@@ -92,18 +92,17 @@ $ ls ./bafybeiakou6e7hnx4ms2yangplzl6viapsoyo6phlee6bwrg4j2xt37m3q/
 
 #### Example: fetching a single raw block from a public gateway
 
-Using `Accept` HTTP header with [application/vnd.ipld.raw](https://www.iana.org/assignments/media-types/application/vnd.ipld.raw) type:
+To request [application/vnd.ipld.raw](https://www.iana.org/assignments/media-types/application/vnd.ipld.raw) response type:
 
 ```bash
-$ curl -H "Accept: application/vnd.ipld.raw" "https://ipfs.io/ipfs/bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi" > raw-block.bin
+$ curl -H "Accept: application/vnd.ipld.raw" "https://ipfs.io/ipfs/bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi?format=raw" -L > raw-block.bin
 $ ipfs block put raw-block.bin
 bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi
 ```
 
-
 ::: tip
 
-An alternative is to pass `?format=raw` URL parameter:
+A Client SHOULD include the [`format` query parameter](https://specs.ipfs.tech/http-gateways/trustless-gateway/#format-request-query-parameter) in the request URL, ideally in addition to the [`Accept` header](https://specs.ipfs.tech/http-gateways/trustless-gateway/#accept-request-header). This provides the best interoperability and ensures consistent HTTP cache behavior across various gateway implementations.
 
 <https://ipfs.io/ipfs/bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi?format=raw>