Fix docs for plugin install via proxy on Windows
This commit addresses an issue with the docs for plugin install via a
proxy on Windows where the HTTP proxy options were incorrectly
specified.
Relates
@@ -187,8 +187,8 @@ Or on Windows:
[source,shell]
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-set ES_JAVA_OPTS="-DproxyHost=host_name -DproxyPort=port_number -Dhttps.proxyHost=host_name -Dhttps.proxyPort=https_port_number"
-bin/elasticsearch-plugin install analysis-icu
+set ES_JAVA_OPTS="-Dhttp.proxyHost=host_name -Dhttp.proxyPort=port_number -Dhttps.proxyHost=host_name -Dhttps.proxyPort=https_port_number"
+bin\elasticsearch-plugin install analysis-icu
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=== Plugins directory
