Add documentation for migration 5.3 to 5.4

Author: sothawo

src/main/antora/modules/ROOT/nav.adoc

@@ -9,6 +9,8 @@
 *** xref:migration-guides/migration-guide-4.4-5.0.adoc[]
 *** xref:migration-guides/migration-guide-5.0-5.1.adoc[]
 *** xref:migration-guides/migration-guide-5.1-5.2.adoc[]
+*** xref:migration-guides/migration-guide-5.2-5.3.adoc[]
+*** xref:migration-guides/migration-guide-5.3-5.4.adoc[]
 
 
 * xref:elasticsearch.adoc[]

src/main/antora/modules/ROOT/pages/migration-guides/migration-guide-5.3-5.4.adoc

@@ -0,0 +1,12 @@
+[[elasticsearch-migration-guide-5.3-5.4]]
+= Upgrading from 5.3.x to 5.4.x
+
+This section describes breaking changes from version 5.3.x to 5.4.x and how removed features can be replaced by new introduced features.
+
+[[elasticsearch-migration-guide-5.3-5.4.breaking-changes]]
+== Breaking Changes
+
+[[elasticsearch-migration-guide-5.3-5.4.deprecations]]
+== Deprecations
+
+=== Removals