Update docs to install as Solr plugin

README.adoc

@@ -37,6 +37,24 @@ image:https://img.shields.io/badge/Apache-2.0-ee1b3e.svg[capition="License", lin
 
 == Installation
 
+=== Solr Plugin (Recommended)
+
+You can install **{project-name}** as a Solr Plugin:
+
+[source,bash,subs="verbatim,attributes"]
+----
+solr package add-repo yasa "https://raw.githubusercontent.com/yasa-org/yasa/master/repo/"
+
+solr package install yasa
+
+# Should be unnecessary in the future
+curl "http://localhost:8983/solr/admin/collections?action=CREATE&name=whatever&numShards=1"
+solr package undeploy yasa -y -collections whatever
+solr package deploy yasa -y -collections whatever
+----
+
+Then navigate your browser to http://localhost:8983/v2/plugin/yasa
+
 === Standalone Mode
 
 You can install **{project-name}** in the standalone mode without affecting the official Solr Admin. Here is how:
@@ -65,7 +83,7 @@ If you are interested in `{project-name}` and want to contribute, you can run `{
 # pull source code
 git clone https://github.com/{org-name}/{project-name-lower}
 
-cd {project-name-lower}
+cd {project-name-lower}/yasa-ui
 
 # install dependencies
 npm i