Enhance documentation with Docusaurus features and fix inaccuracies

Verified against source code and enhanced with Docusaurus markdown features:

Documentation Accuracy Fixes:
- Fixed acme.md: Added "letsencrypt" as valid AUTOCONFIG value (was incorrectly shown as "-")
- Added reference to ACME docs from environment-variable.md
- Verified all features against actual implementation in /src

Docusaurus Enhancements Added:
- Admonitions (:::note, :::tip, :::warning, :::danger, :::info) for important callouts
- Code block titles for all bash/yaml examples (e.g., title="Install EasyHAProxy")
- Better structured warnings and notes for limitations
- Improved formatting and readability throughout

Files Enhanced:
- kubernetes.md: Added info boxes, warnings, code titles
- docker.md: Added limitation warnings, code titles
- swarm.md: Added advantage tips, limitation warnings
- acme.md: Fixed Let's Encrypt autoconfig, enhanced requirements with admonitions
- ssl.md: Added code block titles for all examples
- static.md: Added live reload tip, SSL certificate note
- container-labels.md: Added definition explanation, code titles
- limitations.md: Restructured with clear warnings and explanations
- helm.md: Added warnings, code titles
- microk8s.md: Added ingress controller warning, code titles
- volumes.md: Added info box about volume purposes
- other.md: Added code block titles
- environment-variable.md: Added ACME reference note

All changes verified against actual Python source code implementation.

docs/ssl.md

@@ -13,9 +13,9 @@ There are two ways to do that.
 
 ## Setup certificate as a label definition in docker container
 
-1. Create a single PEM from the certificate and key. 
+1. Create a single PEM from the certificate and key.
 
-```bash
+```bash title="Combine certificate and key"
 cat example.com.crt example.com.key > single.pem
 
 cat single.pem
@@ -33,7 +33,7 @@ MIIEojCCA4qgAwIBAgIUegW2BimwuL4RzRZ2WYkHA6U5nkAwDQYJKoZIhvcNAQEL
 
 2. Convert the `single.pem` to BASE64 in a single line:
 
-```bash
+```bash title="Convert to BASE64"
 cat single.pem | base64 -w0
 ```
 
@@ -47,7 +47,7 @@ EasyHAProxy stores the certificates inside the container folder `/certs/haproxy`
 
 1. Run EasyHAProxy with the volume for the certificates:
 
-```bash
+```bash title="Create and mount certificate volume"
 docker volume create certs_haproxy
 
 docker run \
@@ -58,7 +58,7 @@ docker run \
 
 2. Create a single PEM from the certificate and the key.
 
-```bash
+```bash title="Combine certificate and key"
 cat example.com.crt example.com.key > single.pem
 
 cat single.pem
@@ -74,9 +74,9 @@ MIIEojCCA4qgAwIBAgIUegW2BimwuL4RzRZ2WYkHA6U5nkAwDQYJKoZIhvcNAQEL
 -----END PRIVATE KEY-----
 ```
 
-3. Copy this certificate to EasyHAProxy volume
+3. Copy this certificate to EasyHAProxy volume:
 
-```bash
+```bash title="Copy certificate to container"
 docker cp single.pem easyhaproxy:/certs/haproxy
 ```