fix antora.yml attributes

Author: rwinch

framework-docs/antora.yml

@@ -21,12 +21,12 @@ asciidoc:
     spring-framework-main-code: 'https://github.com/spring-projects/spring-framework/tree/main'
     docs-site: 'https://docs.spring.io'
     docs-spring: "{docs-site}/spring-framework/docs/{spring-version}"
-    docs-spring-framework: '{docs_site}/spring-framework/docs/{spring-version}'
+    docs-spring-framework: '{docs-site}/spring-framework/docs/{spring-version}'
     api-spring-framework: '{docs-spring-framework}/javadoc-api/org/springframework'
     docs-graalvm: 'https://www.graalvm.org/22.3/reference-manual'
     docs-spring-boot: '{docs-site}/spring-boot/docs/current/reference'
-    docs-spring-gemfire: '{docs_site}/spring-gemfire/docs/current/reference'
-    docs-spring-security: '{docs_site}/spring-security/reference'
+    docs-spring-gemfire: '{docs-site}/spring-gemfire/docs/current/reference'
+    docs-spring-security: '{docs-site}/spring-security/reference'
     gh-rsocket: 'https://github.com/rsocket'
     gh-rsocket-extensions: '{gh-rsocket}/rsocket/blob/master/Extensions'
     gh-rsocket-java: '{gh-rsocket}/rsocket-java{gh-rsocket}/rsocket-java'