Doc: Update link to resolve to target content (#206)

Bump to v4.20.3

Author: karenzone

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 4.20.3
+  - [DOC] Update link to bypass redirect, resolving directly to correct content  [#206](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/206)
+
 ## 4.20.2
   - fix case when aggregation returns an error [#204](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/204)
 

docs/index.asciidoc

@@ -301,10 +301,10 @@ can be either IP, HOST, IP:port, or HOST:port. The port defaults to
   * Value type is <<string,string>>
   * Default value is `"logstash-*"`
 
-The index or alias to search. See {ref}/multi-index.html[Multi Indices
-documentation] in the Elasticsearch documentation for more information on how to
-reference multiple indices.
-
+The index or alias to search. 
+Check out {ref}/api-conventions.html#api-multi-index[Multi Indices
+documentation] in the Elasticsearch documentation for info on
+referencing multiple indices.
 
 [id="plugins-{type}s-{plugin}-password"]
 ===== `password` 

logstash-input-elasticsearch.gemspec

@@ -1,7 +1,7 @@
 Gem::Specification.new do |s|
 
   s.name            = 'logstash-input-elasticsearch'
-  s.version         = '4.20.2'
+  s.version         = '4.20.3'
   s.licenses        = ['Apache License (2.0)']
   s.summary         = "Reads query results from an Elasticsearch cluster"
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"