v2.0.0

• Remove duplication of internal remark-abbr code
• We are now allowint options to be passed, see remark-abbr for available options:

    {
      resolve: `gatsby-transformer-remark`,
      options: {
        commonmark: true,
        footnotes: true,
        pedantic: true,
        gfm: true,
        plugins: [
-         "gatsby-remark-abbr"
+         { 
+          resolve: "gatsby-remark-abbr",
+           options: { expandFirst: true },
+         }
        ],
      },
    }