Typo fix.

Author: Querela

fcs-core-2.0/interface-specification.adoc

@@ -66,7 +66,7 @@ A list of Layers that are generally supported by this Endpoint. This list is com
 +
 This list `MUST NOT` include duplicate entries, i.e. no Layer with the same `@result-id` MIME type must appear more than once.
 +
-The value of the `@id` or `@result-id` attribute `MUST NOT` contain the characters `,` (comma) or `;` (semicolon) The value of the `@qualifier` attribute `MUST NOT` contain characters other than `a`-`z`,`A`-`Z`,`0`-`9` and `-` (hyphen), and the first character MUST be one of `a`-`z` or `A`-`Z`. The `<ed:SupportedLayer>` element `MAY` carry an `@alt-value-info` and `@alt-value-info-uri` attribute; `@alt-value-info` `SHOULD` contain a short description about the layer, e.g. the original tag set used; `@alt-value-info-uri` `MUST` contain a well-formed URI and `SHOULD` point to a web site with further information, e.g. about the original tag set and how the translation to FCS is done. Client, e.g. the Aggregator, can display this information together with the search result.
+The value of the `@id` or `@result-id` attribute `MUST NOT` contain the characters `,` (comma) or `;` (semicolon). The value of the `@qualifier` attribute `MUST NOT` contain characters other than `a`-`z`,`A`-`Z`,`0`-`9` and `-` (hyphen), and the first character MUST be one of `a`-`z` or `A`-`Z`. The `<ed:SupportedLayer>` element `MAY` carry an `@alt-value-info` and `@alt-value-info-uri` attribute; `@alt-value-info` `SHOULD` contain a short description about the layer, e.g. the original tag set used; `@alt-value-info-uri` `MUST` contain a well-formed URI and `SHOULD` point to a web site with further information, e.g. about the original tag set and how the translation to FCS is done. Client, e.g. the Aggregator, can display this information together with the search result.
 
 * one `<ed:Resources>` element (`REQUIRED`)
 +