Make fixes in README.adoc according to comments in PR

README.adoc

@@ -1,25 +1,7 @@
----
-layout: documentation
-title: Liquibase Runner
----
-ifdef::backend-html5[]
-:notitle:
-:description:
-:author:
-:sectanchors:
-:toc: left
-endif::[]
-
---
-[WARNING]
-Older versions of this plugin may not be safe to use. Please review the following warnings before using an older version: +
-* https://jenkins.io/security/advisory/2018-03-26/#SECURITY-519[Plugin allows users to load arbitrary Java code into master JVM] +
-* https://www.jenkins.io/security/advisory/2020-09-23/#SECURITY-2030[Missing permission check allows enumerating credentials IDs] +
-* https://www.jenkins.io/security/advisory/2020-09-23/#SECURITY-1887[XXE vulnerability] +
-* https://www.jenkins.io/security/advisory/2020-09-23/#SECURITY-1885[Stored XSS vulnerability]
---
-
-[.conf-macro .output-inline]#Provides https://www.liquibase.org/[Liquibase] build steps that evaluate liquibase changesets.#
+= Liquibase Runner
+
+
+Provides https://www.liquibase.org/[Liquibase] build steps that evaluate liquibase changesets.
 
 *Important Upgrade Information* +
 Version 1.2.0 now uses the https://plugins.jenkins.io/credentials[Credentials Plugin] to manage usernames and passwords to connect to the database. If you were using username & password configuration in the previous version of this plugin, be aware that credentials will be automatically created upon plugin update.
@@ -32,12 +14,12 @@ Evaluated changesets and their details appear on the build's summary page.
 
 Uses liquibase version 3.8.9.
 
-[frame="none",grid="none",width="100%",cols="25%,25%,25%,25%",]
+[frame=none,grid=none,.stripes-none,cols="50%,50%"]
 |===
-|image:src/docs/images/dbdoc.png[image,width=300,height=149]
-|image:src/docs/images/changeset-detail.png[image,width=300,height=134]
-|image:src/docs/images/changeset-listing.png[image,width=300,height=138]
-|image:src/docs/images/changeset-summary.png[image,width=300,height=194]
+|image:src/docs/images/dbdoc.png[image,width="500", scaledwidth="70%"]
+|image:src/docs/images/changeset-detail.png[image,width="500", scaledwidth="70%"]
+|image:src/docs/images/changeset-listing.png[image,width="500", scaledwidth="70%"]
+|image:src/docs/images/changeset-summary.png[image,width="500", scaledwidth="70%"]
 
 a| a| a| a
 |===