Swap a index for the same alias (#19884)

lu3do · clintongormley · commit eea1bc719b03 · 2016-08-16T15:24:42.000+02:00
In the example there was a alias removed and then a different alias created for the same index, but I think actually swapping a index by another one for the same alias would make more sense as an example here.
diff --git a/docs/reference/indices/aliases.asciidoc b/docs/reference/indices/aliases.asciidoc
@@ -48,7 +48,7 @@ POST /_aliases
 {
     "actions" : [
         { "remove" : { "index" : "test1", "alias" : "alias1" } },
-        { "add" : { "index" : "test1", "alias" : "alias2" } }
+        { "add" : { "index" : "test2", "alias" : "alias1" } }
     ]
 }
 --------------------------------------------------

Original file line number	Diff line number	Diff line change
`@@ -48,7 +48,7 @@ POST /_aliases`
`48`	`48`	`{`
`49`	`49`	`"actions" : [`
`50`	`50`	`{ "remove" : { "index" : "test1", "alias" : "alias1" } },`
`51`		`- { "add" : { "index" : "test1", "alias" : "alias2" } }`
	`51`	`+ { "add" : { "index" : "test2", "alias" : "alias1" } }`
`52`	`52`	`]`
`53`	`53`	`}`
`54`	`54`	`--------------------------------------------------`