Merge pull request #1301 from mvolz/sensiblecitoidlimits

Request users use the API less and remove reference to ISBNs

v1/citoid.yaml

@@ -21,7 +21,9 @@ paths:
         - Citation
       summary: Get citation data given an article identifier.
       description: |
-        Generates citation data given a URL, DOI, PMID, ISBN, or PMCID.
+        Generates citation data given a URL, DOI, PMID, or PMCID.
+
+        Automated requests can be made at a rate of 1 request per second (rps).
 
         See more at [Citoid service documentation](https://www.mediawiki.org/wiki/Citoid)
 
@@ -51,7 +53,7 @@ paths:
         - name: query
           in: path
           description: |
-            URL of an article, DOI, ISBN, PMCID or PMID in the URL-encoded format. Note that on the Swagger-UI doc page you don't need to URI-encode the parameter manually, it will be done by the docs engine.
+            URL of an article, DOI, PMCID or PMID in the URL-encoded format. Note that on the Swagger-UI doc page you don't need to URI-encode the parameter manually, it will be done by the docs engine.
           required: true
           schema:
             type: string