Update docs for DNS settings etc. (#3936)

* Update docs for DNS settings of the services which need its CNAME record by default

- Buscarron
- Go-NEB; fix a line on the instruction as well
- wsproxy
- Cinny
- Element Web
- Hydrogen
- SchildiChat Web
- Dimension
- Etherpad
- Jitsi
- ntfy
- Grafana
- rageshake
- Sygnal

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs for DNS settings of the services which do not need its CNAME record by default

- matrix-alertmanager-receiver
- Honoroit
- maubot
- Heisenbridge
- Cactus Comments
- Matrix Authentication Service
- matrix-registration
- Sliding Sync proxy
- Synapse Admin
- synapse-usage-exporter

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs for DNS settings: ma1sd

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs for DNS settings: Email2Matrix

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs for DNS settings: Postmoogle

Remove the table from configuring-dns.md altogether

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs for Cinny and Dimension: adopt the common note

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-dns.md: add "Note" to the line on using Cloudflare DNS

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

---------

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
Co-authored-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

docs/configuring-playbook-bot-go-neb.md

@@ -28,6 +28,12 @@ The bot requires an access token to be able to connect to your homeserver. Refer
 
 ⚠️ **Warning**: Access tokens are sensitive information. Do not include them in any bug reports, messages, or logs. Do not share the access token with anyone.
 
+## Adjusting DNS records
+
+By default, this playbook installs Go-NEB on the `goneb.` subdomain (`goneb.example.com`) and requires you to create a CNAME record for `goneb`, which targets `matrix.example.com`.
+
+When setting, replace `example.com` with your own.
+
 ## Adjusting the playbook configuration
 
 To enable the bot, add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file. Make sure to replace `ACCESS_TOKEN_FOR_GONEB_HERE` and `ACCESS_TOKEN_FOR_ANOTHER_GONEB_HERE` with the ones created [above](#obtain-an-access-token).
@@ -194,9 +200,7 @@ matrix_bot_go_neb_services:
           msg_type: "m.text"  # Must be either `m.text` or `m.notice`
 ```
 
-### Adjusting the Go-NEB URL
-
-By default, this playbook installs Go-NEB on the `goneb.` subdomain (`goneb.example.com`) and requires you to [adjust your DNS records](#adjusting-dns-records).
+### Adjusting the Go-NEB URL (optional)
 
 By tweaking the `matrix_bot_go_neb_hostname` and `matrix_bot_go_neb_path_prefix` variables, you can easily make the service available at a **different hostname and/or path** than the default one.
 
@@ -207,15 +211,11 @@ Example additional configuration for your `vars.yml` file:
 # so we won't need to add additional DNS records for Go-NEB.
 matrix_bot_go_neb_hostname: "{{ matrix_server_fqn_matrix }}"
 
-# Expose under the /buscarron subpath
+# Expose under the /go-neb subpath
 matrix_bot_go_neb_path_prefix: /go-neb
 ```
 
-## Adjusting DNS records
-
-Once you've decided on the domain and path, **you may need to adjust your DNS** records to point the Go-NEB domain to the Matrix server.
-
-By default, you will need to create a CNAME record for `goneb`. See [Configuring DNS](configuring-dns.md) for details about DNS changes.
+After changing the domain, **you may need to adjust your DNS** records to point the Go-NEB domain to the Matrix server.
 
 If you've decided to reuse the `matrix.` domain, you won't need to do any extra DNS configuration.