README.md in wpscan-3.5.3 vs README.md in wpscan-3.5.4

@@ -28,9 +28,10 @@
 - Ruby >= 2.3 - Recommended: latest
   - Ruby 2.5.0 to 2.5.3 can cause an 'undefined symbol: rmpd_util_str_to_d' error in some systems, see [#1283](https://github.com/wpscanteam/wpscan/issues/1283)
 - Curl >= 7.21  - Recommended: latest
   - The 7.29 has a segfault
 - RubyGems      - Recommended: latest
+- Nokogiri might require packages to be installed via your package manager depending on your OS, see https://nokogiri.org/tutorials/installing_nokogiri.html
 
 ### From RubyGems (Recommended)
 
 ```shell
 gem install wpscan