Update staging docs for data package title hyperlinking

Modify staging instructions to hyperlink data package titles to their
corresponding staging environment URLs, as DOIs are not available in the
staging environment.

README.md

@@ -29,7 +29,11 @@ Researchers and organizations publishing data in the [EDI Repository](https://po
    - `/harvester/pasta_harvester.mjs`
    - `/public/pasta.js`
 
-   Additionally, in `/public/pasta.js` replace the line `var uri = baseUri + pid;` with `var uri = baseUri + pid + "?env=staging";`
+   Additionally, in `/public/pasta.js` replace the line `var uri = baseUri + pid;` with `var uri = baseUri + pid + "?env=staging";`.
+
+
+
+   Finally, in `/public/pasta.js` replace the line `var link = (citation["doi"]) ? citation["doi"].slice(0, -1) : "https://portal.edirepository.org/nis/mapbrowse?packageid=" + citation["pid"];`, with the line `var link = "https://portal-s.edirepository.org/nis/mapbrowse?packageid=" + citation["pid"];`
 
 To see an example of how to embed the catalog in a web page `<iframe>`, view the page source code of the [Jornada Basin LTER Data Catalog](https://lter.jornada.nmsu.edu/data-catalog/) or experiment using the W3Schools [HTML Tryit editor](https://www.w3schools.com/html/tryit.asp?filename=tryhtml_intro).