Update resources related to C / C++ (#8237)

* Update resource link of C in game dev roadmap

* Add resources for C / C++ in server side game dev roadmap

src/data/roadmaps/game-developer/content/cc@jsq0UXnIIC0Z_nbK2w48f.md

@@ -6,5 +6,5 @@ On the other hand, **C++** follows the paradigm of both procedural and object-or
 
 Visit the following resources to learn more:
 
-- [@article@The C Programming Language](https://www.iso.org/standard/74528.html)
+- [@article@C Programming Language](https://en.wikipedia.org/wiki/C_%28programming_language%29)
 - [@article@C++ Programming Language](https://en.wikipedia.org/wiki/C%2B%2B)

src/data/roadmaps/server-side-game-developer/content/cc@E4H3hniIW6hKpH3Qr--N5.md

@@ -1,3 +1,6 @@
 # C / C++
 
-"C" and "C++", often written as "C/CPP", are two significantly prominent and similar programming languages widely used in server-side game development. "C" is a procedural language, which means that it follows a step-by-step procedure to solve a problem, while "C++" is both a procedural and object-oriented programming (OOP) language. This dual nature of "C++" allows it to handle more complex interrelated data and functions efficiently, which is a beneficial feature in game development. Moreover, "C++" is an extension of "C", meaning that any legal "C" program is also a valid "C++" program. Both languages offer a high degree of control over system resources and memory, making them an excellent choice for building fast and efficient server-side applications, such as multiplayer game servers.
+"C" and "C++", often written as "C/CPP", are two significantly prominent and similar programming languages widely used in server-side game development. "C" is a procedural language, which means that it follows a step-by-step procedure to solve a problem, while "C++" is both a procedural and object-oriented programming (OOP) language. This dual nature of "C++" allows it to handle more complex interrelated data and functions efficiently, which is a beneficial feature in game development. Moreover, "C++" is an extension of "C", meaning that any legal "C" program is also a valid "C++" program. Both languages offer a high degree of control over system resources and memory, making them an excellent choice for building fast and efficient server-side applications, such as multiplayer game servers.
+
+- [@article@C Programming Language](https://en.wikipedia.org/wiki/C_%28programming_language%29)
+- [@article@C++ Programming Language](https://en.wikipedia.org/wiki/C%2B%2B)