docs: mention --user-install option
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				|  | @ -9,25 +9,37 @@ First, you need to install the command-line tools to be able to compile native e | |||
| xcode-select --install | ||||
| ``` | ||||
| 
 | ||||
| :warning: We strongly recommend that you install Ruby gems in your home directory in order to avoid file permissions and the use of `sudo`. To change the default gem path, add those line to your shell config file (e.g. `~/.bash_profile`): | ||||
| {: .note } | ||||
| We strongly recommend that you install Ruby gems in your home directory to avoid file permissions problems and using `sudo`. | ||||
| 
 | ||||
| You can do this with the `--user-install` option, for instance by running: | ||||
| 
 | ||||
| ```sh | ||||
| gem install --user-install bundler jekyll | ||||
| ``` | ||||
| 
 | ||||
| Or you can change the default gem path, by adding those lines to your shell config file, .e.g. `~/.bash_profile` or `~/.bashrc` if your shell is bash: | ||||
| 
 | ||||
| ``` | ||||
| export GEM_HOME=$HOME/gems | ||||
| export PATH=$HOME/gems/bin:$PATH | ||||
| ``` | ||||
| 
 | ||||
| Relaunch your terminal and run `gem env` to check that default gem paths point to you home directory. | ||||
| Relaunch your terminal and run `gem env` to check that default gem paths point to you home directory by default. | ||||
| 
 | ||||
| ## Set up Ruby included with the OS | ||||
| 
 | ||||
| Jekyll requires Ruby > 2.2.5 — we recommend that you run Ruby > 2.3 though, as more and more dependencies ask for that requirement. You're good to go on macOS Mojave 10.14: | ||||
| 
 | ||||
| ```sh | ||||
| sw_vers -productVersion | ||||
| 10.14 | ||||
| 
 | ||||
| ruby -v | ||||
| ruby 2.3.7p456 (2018-03-28 revision 63024) [universal.x86_64-darwin18] | ||||
| ``` | ||||
| 
 | ||||
| You can install Jekyll and [Bundler](/docs/ruby-101/#bundler): | ||||
| Install [Bundler](/docs/ruby-101/#bundler) and Jekyll by running: | ||||
| 
 | ||||
| ```sh | ||||
| gem install bundler jekyll | ||||
|  |  | |||
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