Remove unused fields

README.md

@@ -21,7 +21,6 @@ Meta data requirements:
 - `ghrepo`: the github repository name where the extension resides (required)
 - `tags`: comma separated list (with no spaces) of tags that describe the extension - see other extension's tags for ideas
 - `cran`: `true` if the package is on CRAN, else `false`
-- `examples`: url or list of urls of examples (blog posts, gists, vignettes)
 - `ghauthor`: the github handle for the primary author of the extension
 - `short`: a short (preferably one sentence) description of the package that will be displayed in limited space under the extension thumbnail in the gallery - ideally should be more than "An htmlextension interface to library x" as that is obvious from jslib, etc. - instead, should describe what you can do with the extension using library x
 - `description`: a longer form description