Use https for checksum and ASC links.
diff --git a/src/main/docgen/book.xml b/src/main/docgen/book.xml
index 2f3c11d..8d81db7 100644
--- a/src/main/docgen/book.xml
+++ b/src/main/docgen/book.xml
@@ -240,22 +240,22 @@
xlink:href="http://www.apache.org/dyn/closer.cgi/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz">Binary
release (tar.gz)</link> (includes <literal>freemarker.jar</literal>
and documentation) [<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz.md5">MD5</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz.md5">MD5</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz.sha512">SHA512</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz.sha512">SHA512</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz.asc">ASC</link>]</para>
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-2.3.24-rc01-incubating-bin.tar.gz.asc">ASC</link>]</para>
</listitem>
<listitem>
<para><link
xlink:href="http://www.apache.org/dyn/closer.cgi/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz">Source
release (tar.gz)</link> [<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz.md5">MD5</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz.md5">MD5</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz.sha512">SHA512</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz.sha512">SHA512</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz.asc">ASC</link>]</para>
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-2.3.24-rc01-incubating-src.tar.gz.asc">ASC</link>]</para>
</listitem>
</itemizedlist>
@@ -263,19 +263,19 @@
<link
xlink:href="http://www.apache.org/dyn/closer.cgi/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz">binary</link>
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz.md5">MD5</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz.md5">MD5</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz.sha512">SHA512</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz.sha512">SHA512</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz.asc">ASC</link>],
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/binaries/apache-freemarker-gae-2.3.24-rc01-incubating-bin.tar.gz.asc">ASC</link>],
<link
xlink:href="http://www.apache.org/dyn/closer.cgi/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz">source</link>
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz.md5">MD5</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz.md5">MD5</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz.sha512">SHA512</link>]
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz.sha512">SHA512</link>]
[<link
- xlink:href="http://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz.asc">ASC</link>])</para>
+ xlink:href="https://www.apache.org/dist/incubator/freemarker/engine/2.3.24-rc01-incubating/source/apache-freemarker-gae-2.3.24-rc01-incubating-src.tar.gz.asc">ASC</link>])</para>
<para>The Maven artifact, because it's a non-final release, is only
available in the Apache Staging Repository, <emphasis>not</emphasis> in
