Cross-references mdsal-docs with yangtools-docs.
Change-Id: Iea811968568f48de9070a0a45876db71dce37470
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
(cherry picked from commit
674ce26e4f2c3e7f7400f7920b78bef657c05a0a)
<link>https://commons.apache.org/proper/commons-lang/javadocs/api-2.6/</link>
<link>https://commons.apache.org/proper/commons-lang/javadocs/api-3.9/</link>
<link>https://commons.apache.org/proper/commons-codec/apidocs/</link>
+
+ <link>https://www.javadoc.io/doc/org.opendaylight.yangtools/yangtools-docs/3.0.6/</link>
</links>
<groups>
<group>