Options: Update autolink exclusions tooltip

* An attempt at clarity

_locales/en/messages.json

@@ -9,7 +9,7 @@
 	},
 	"autolinkExclusionsInfoText": {
 		"description": "Guidelines for entries in the autolink exclusions text(area) box",
-		"message": "List websites &ndash; one per line &ndash; that should not be parsed by the autolink feature. All matching tests are case-insensitive. Do not specify the protocol; http and https will be assumed.<br><br><span style=\"text-decoration: underline;\">Normal matching</span>: Websites will be matched based on whether the string matches the <em>beginning</em> of the URL.<br>Example: <strong>example.com/abc</strong> will match http://example.com/abc/def but will not match http://www.example.com/abc/def.<br><br><span style=\"text-decoration: underline;\">Regex matching</span>: Surround an entry by forward slashes (/) to perform a regex match on an entire URL, omitting the protocol.<br>Example: <strong>/(?:www\\.)?example\\.com\\/abc(?:.+)?/</strong> will match both http://example.com/abc/def and http://www.example.com/abc/def."
+		"message": "List websites &ndash; one per line &ndash; that should not be parsed by the autolink feature. All matching tests are case-insensitive. Do not specify the protocol; http and https will be assumed.<br><br><span style=\"text-decoration: underline;\">Normal matching</span>: Websites will be matched based on whether the string matches the URL, <em>beginning</em> with the hostname. Wildcards are not supported.<br>Example: <strong>example.com/abc</strong> will match http://example.com/abc/def but will not match http://www.example.com/abc/def.<br><br><span style=\"text-decoration: underline;\">Regex matching</span>: Surround an entry by forward slashes (/) to perform a regex match on an entire URL, beginning with the hostname.<br>Example: <strong>/example\\.com\\/abc.*/</strong> will match both http://example.com/abc/def and http://www.example.com/abc/def."
 	},
 	"autolinkExclusionsInvalidUrl": {
 		"description": "Report that test URL is invalid due to missing http/https protocol",