Add alternatives && helpful blogs (#19)

* mention alternatives

* [auto-verifier] verify commit 93c36b8

* add rust CF blogs too

* [auto-verifier] verify commit b0e409a

* add one more lib

* [auto-verifier] verify commit 6890a22

* add another one

* [auto-verifier] verify commit 9aab2df

---------

Co-authored-by: Luke Videckis <lukevideckis@gmail.com>
Co-authored-by: GitHub <noreply@github.com>
Co-authored-by: Cameron Custer <custer.cameron@gmail.com>

Author: 3 people

README.md

@@ -11,4 +11,20 @@ Therefore the code is written with these three pillars:
 
 Note: the code is **not** written for ICPC style contests and is **not** optimized for code length.
 
+### Rust CF Blogs
+
+- https://codeforces.com/blog/entry/67391
+- https://codeforces.com/blog/entry/103794
+- https://codeforces.com/blog/entry/111573
+- https://codeforces.com/blog/entry/125439
+
+### Other Rust CP Repos
+
+- https://github.com/rust-lang-ja/ac-library-rs
+- https://github.com/EgorKulikov/rust_algo
+- https://github.com/bminaiev/rust-contests
+- https://github.com/EbTech/rust-algorithms
+- https://github.com/qitoy/rust-library
+- https://github.com/stuart0035/procon-lib-rs
+
 ### This repository is currently under construction.