fix(gatsby-source-medium): fix data fecthing & add limitation to readme (#17547)

* Temporary workaround for Medium CAPTCA issue

* chore(gatsby-source-medium): updated README to mention the limitation and remove limit option from query

* Fix README Prettier issues

* Update packages/gatsby-source-medium/README.md

Co-Authored-By: LB <laurie@gatsbyjs.com>

* chore: format

Co-authored-by: GatsbyJS Bot <mathews.kyle+gatsbybot@gmail.com>
Co-authored-by: Ollie Monk <omonk@users.noreply.github.com>
Co-authored-by: Ward Peeters <ward@coding-tech.com>
Co-authored-by: LB <laurie@gatsbyjs.com>

Author: 5 people

packages/gatsby-source-medium/README.md

@@ -1,9 +1,7 @@
 # gatsby-source-medium
 
 Source plugin for pulling data into Gatsby from an unofficial Medium JSON
-endpoint. Unfortunately the JSON endpoint does not provide the complete stories,
-but only previews. If you need the complete stories, you might have a look at
-something like
+endpoint. Unfortunately the JSON endpoint does not provide the complete stories, but only previews. And due to a limitation placed by Medium, only the most recent 10 posts are returned. If you need the complete stories, you might have a look at something like
 [gatsby-source-rss](https://github.com/jondubin/gatsby-source-rss).
 
 ## Install
@@ -19,7 +17,6 @@ plugins: [
     resolve: `gatsby-source-medium`,
     options: {
       username: `username/publication`,
-      limit: 200,
     },
   },
 ]
@@ -31,14 +28,6 @@ plugins: [
 
 Remember that if you are fetching a user, prepend your username with `@`.
 
-#### Limit
-
-**Note: this only affects requests for users and not publications.**
-
-Limit is optional and will default to 100.
-
-You must set a higher limit if you want more than 100 posts. If you want fewer, you can either use this setting, or add a limit parameter to your graphql query.
-
 ## How to query
 
 Get all posts with the preview image ID and the author's name:

packages/gatsby-source-medium/src/gatsby-node.js

@@ -1,7 +1,7 @@
 const axios = require(`axios`)
 
 const fetch = (username, limit = 100) => {
-  const url = `https://medium.com/${username}/latest?format=json&limit=${limit}`
+  const url = `https://medium.com/${username}/?format=json&limit=${limit}`
   return axios.get(url)
 }