Fix typo in scripts/readme (#2517)

Fixed some typos

scripts/readme.md

@@ -33,7 +33,7 @@ npm run roadmap-content [frontend|backend|devops|...]
 For the content skeleton to be generated, we should have proper grouping, and the group names in the project files. You can follow the steps listed below in order to add the meta information to the roadmap. 
 
 * Remove all the groups from the roadmaps through the project editor. Select all and press <kbd>cmd</kbd>+<kbd>shift</kbd>+<kbd>g</kbd>
-* Identify the boxes that should be clickable and group them together <kbd>cmd</kbd>+<kbd>shift</kbd>+<kbd>g</kbd>
+* Identify the boxes that should be clickable and group them together with <kbd>cmd</kbd>+<kbd>shift</kbd>+<kbd>g</kbd>
 * Assign the name to the groups. 
   * Group names have the format of `[sort]-[slug]` e.g. `100-internet`. Each group name should start with a number starting from `100` which helps with sorting of the directories and the files. Groups at the same level have the sequential sorting information.
   * Each groups children have a separate group and have the name similar to `[sort]-[parent-slug]:[child-slug]` where `sort` refers to the sorting of the `child-slug` and not the parent. Also `parent-slug` does not need to have the sorting information as a part of slug e.g. if parent was `100-internet` the children would be `100-internet:how-does-the-internet-work`, `101-internet:what-is-http`, `102-internet:browsers`.