Nit fixes and formatting following elastic#62490 comments

BigPandaToo · BigPandaToo · commit a4dd6e29038d · 2020-10-16T16:47:58.000+02:00
Fixing formatting
diff --git a/x-pack/docs/en/rest-api/security/get-tokens.asciidoc b/x-pack/docs/en/rest-api/security/get-tokens.asciidoc
@@ -140,8 +140,8 @@ seconds) that the token expires in, and the type:
     "lookup_realm" : {
       "name" : "file",
       "type" : "file"
-  },
-  "authentication_type" : "realm"
+    },
+    "authentication_type" : "realm"
   }
 }
 --------------------------------------------------

Original file line number	Diff line number	Diff line change
`@@ -140,8 +140,8 @@ seconds) that the token expires in, and the type:`
`140`	`140`	`"lookup_realm" : {`
`141`	`141`	`"name" : "file",`
`142`	`142`	`"type" : "file"`
`143`		`- },`
`144`		`- "authentication_type" : "realm"`
	`143`	`+ },`
	`144`	`+ "authentication_type" : "realm"`
`145`	`145`	`}`
`146`	`146`	`}`
`147`	`147`	`--------------------------------------------------`