WIP - Add workflow for adoc to html (#1033)

* [WIP] - Add workflow for adoc to html

* Update whats-new.adoc

* Update to-plain-html.yml

.github/workflows/to-plain-html.yml

@@ -0,0 +1,18 @@
+name: AsciiDoc to HTML
+
+on:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:              
+      - uses: actions/[email protected]
+      - name: Asciidoc to html
+        uses: cazziwork/[email protected]
+        with:
+          src: ../../docs/modules/ROOT/pages/whats-new/
+          dest: ../../.
+
+

docs/modules/whats-new/whats-new.adoc

@@ -0,0 +1,10 @@
+What's new in Platform 5.4
+
+First of all, starting with this release of Hazelcast Platform, the minimum supported Java version has become 17.
+
+You can now deploy, undeploy or redeploy your custom classes by using the user code name spacing feature. The feature provides a container for Java classpath resources, such as your classes, and accompanying artifacts like property files - enabling namespace isolation to ensure that access to resources in different namespaces can be managed through configuration.
+
+We've also added a map data structure aligned with your CP subsystem - (C)onsistent and (P)artition tolerant: CPMap. It is a distributed implementation of a minimal key-value interface supporting many atomic operations like get, delete and put.
+
+And many other enhancements...............
+