Update docs for ADLS properties

Author: vsdsantos

mkdocs/docs/configuration.md

@@ -155,6 +155,7 @@ For the FileIO there are several configuration options available:
 | adls.tenant-id         | ad667be4-b811-11ed-afa1-0242ac120002                                                      | The tenant-id                                                                                                                                                                                                                                                                          |
 | adls.client-id         | ad667be4-b811-11ed-afa1-0242ac120002                                                      | The client-id                                                                                                                                                                                                                                                                          |
 | adls.client-secret     | oCA3R6P\*ka#oa1Sms2J74z...                                                                | The client-secret                                                                                                                                                                                                                                                                      |
+| adls.account-host      | accountname1.blob.core.windows.net                                                        | The storage account host. See [AzureBlobFileSystem](https://github.com/fsspec/adlfs/blob/adb9c53b74a0d420625b86dd00fbe615b43201d2/adlfs/spec.py#L125) for reference                                                                                                                   |
 
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