Add resource link for FTP Protocol (#4714)

* add spring boot content

* Update content/roadmaps/110-java/content/103-java-web-frameworks/101-spring-boot.md

* Add Java Collection Framework

* Update content/roadmaps/110-java/content/101-java-advanced-topics/102-collection-framework.md

* Add resource link for FTP Protocol

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Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/cyber-security/content/102-networking-knowledge/108-common-protocols/102-ftp.md

@@ -29,3 +29,5 @@ FTP has some significant security issues, primarily because it was designed befo
 To mitigate these security risks, several secure alternatives to the FTP protocol have been developed, such as FTPS (FTP Secure) and SFTP (SSH File Transfer Protocol), which encrypt data transfers and provide additional security features.
 
 In conclusion, FTP is a commonly used protocol for transferring files between computers over a network. While it is easy to use, it has significant security vulnerabilities that make it a less desirable option for secure file transfers. It's essential to use more secure alternatives like FTPS or SFTP for transferring sensitive data.
+
+- [What Is FTP: FTP Explained for Beginners](https://www.hostinger.com/tutorials/what-is-ftp)