✨ Add ban html template (#142)

* ✨ Add ban html template

* 📝 Add doc for custom ban page

* 🍱 fix Mathieu work

* 🍱 fix lint

* 🍱 fix lint

* 🍱 fix lint

* 🍱 fix lint

---------

Co-authored-by: Max Lerebourg <maxlerebourg@gmail.com>

README.md

@@ -177,15 +177,18 @@ Only one instance of the plugin is *possible*.
 - CaptchaSecretKey
   - string
   - Site secret key for the captcha provider
-- CaptchaHTMLFilePath
-  - string
-  - default: /captcha.html
-  - Path where the captcha template is stored
 - CaptchaGracePeriodSeconds
   - int64
   - default: 1800 (= 30 minutes)
   - Period after validation of a captcha before a new validation is required if Crowdsec decision is still valid
-
+- CaptchaHTMLFilePath
+  - string
+  - default: /captcha.html
+  - Path where the captcha template is stored
+- BanHTMLFilePath
+  - string
+  - default: ""
+  - Path where the ban html file is stored (default empty ""=disabled)
 
 ### Configuration
 
@@ -285,11 +288,12 @@ http:
           captchaSecretKey: FIXME
           captchaGracePeriodSeconds: 1800
           captchaHTMLFilePath: /captcha.html
+          banHTMLFilePath: ban.html
 ```
 
 #### Fill variable with value of file
 
-`CrowdsecLapiTlsCertificateBouncerKey`, `CrowdsecLapiTlsCertificateBouncer`, `CrowdsecLapiTlsCertificateAuthority`, `CrowdsecCapiMachineId`, `CrowdsecCapiPassword` and `CrowdsecLapiKey` can be provided with the content as raw or through a file path that Traefik can read.  
+`CrowdsecLapiTlsCertificateBouncerKey`, `CrowdsecLapiTlsCertificateBouncer`, `CrowdsecLapiTlsCertificateAuthority`, `CrowdsecCapiMachineId`, `CrowdsecCapiPassword`, `CrowdsecLapiKey`, `CaptchaSiteKey` and `CaptchaSecretKey` can be provided with the content as raw or through a file path that Traefik can read.  
 The file variable will be used as preference if both content and file are provided for the same variable.
 
 Format is:  
@@ -378,6 +382,8 @@ docker exec crowdsec cscli decisions remove --ip 10.0.0.10 -t captcha
 
 #### 9. Using Traefik with Captcha remediation feature enabled [examples/captcha/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/captcha/README.md)
 
+#### 10. Using Traefik with Custom Ban HTML Page [examples/custom-ban-page/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/custom-ban-page/README.md)
+
 ### Local Mode
 
 Traefik also offers a developer mode that can be used for temporary testing of plugins not hosted on GitHub.