[DOCS] Fix typo in network-host.asciidoc

docs/reference/setup/important-settings/network-host.asciidoc

@@ -23,7 +23,7 @@ The `network.host` setting also understands some special values such as
 `_local_`, `_site_`, `_global_` and modifiers like `:ip4` and `:ip6`, details of
 which can be found in <<network-interface-values>>.
 
-IMPORTANT: As soon you provide a custom setting for `network.host`,
+IMPORTANT: As soon as you provide a custom setting for `network.host`,
 Elasticsearch assumes that you are moving from development mode to production
 mode, and upgrades a number of system startup checks from warnings to
 exceptions. See <<dev-vs-prod>> for more information.