Handle three gatsby-remark-prismjs warnings during build

Is this a desired choice? To have generic code blocks in gatsby-remark-prismjs?

When running "yarn dev" the three following warnings occurs.

warn unable to find prism language 'sh' for highlighting. applying generic code block
warn unable to find prism language 'jsxon' for highlighting. applying generic code block
warn unable to find prism language 'console' for highlighting. applying generic code block

These warnings can be prevented by adding one line in gatsby-config.js on line 86.

'gatsby-remark-use-jsx',
          {
            resolve: 'gatsby-remark-prismjs',
            options: {
              classPrefix: 'gatsby-code-',
              aliases: {sh: 'bash', jsxon: 'jsx', console: 'bash'}, < ---
            },
          },

But maybe we want to generic code blocks?

檢查第 86 行附近的 gatsby-config.js 以及回報的 gatsby-remark-prismjs 警告。執行 "yarn dev" 以確認 sh、jsxon 和 console 警告，然後判斷加入列出的別名是否為預期的設定，並確認這些警告已解決。