Add DNS provider for Njalla (#1348)

docs/content/dns/zz_gen_njalla.md

@@ -0,0 +1,62 @@
+---
+title: "Njalla"
+date: 2019-03-03T16:39:46+01:00
+draft: false
+slug: njalla
+---
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/njalla/njalla.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+
+Since: v4.3.0
+
+Configuration for [Njalla](https://njal.la).
+
+
+<!--more-->
+
+- Code: `njalla`
+
+Here is an example bash command using the Njalla provider:
+
+```bash
+NJALLA_TOKEN=xxxxxxxxxxxxxxxxxxxxxxxxxx \
+lego --email myemail@example.com --dns njalla --domains my.example.org run
+```
+
+
+
+
+## Credentials
+
+| Environment Variable Name | Description |
+|-----------------------|-------------|
+| `NJALLA_TOKEN` | API token |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here](/lego/dns/#configuration-and-credentials).
+
+
+## Additional Configuration
+
+| Environment Variable Name | Description |
+|--------------------------------|-------------|
+| `NJALLA_HTTP_TIMEOUT` | API request timeout |
+| `NJALLA_POLLING_INTERVAL` | Time between DNS propagation check |
+| `NJALLA_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
+| `NJALLA_TTL` | The TTL of the TXT record used for the DNS challenge |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here](/lego/dns/#configuration-and-credentials).
+
+
+
+
+## More information
+
+- [API documentation](https://njal.la/api/)
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/njalla/njalla.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->