docs(readme): add non-standard language devShell approval policy

Author: Jan Pluskal

README.md

@@ -16,9 +16,11 @@ You cannot get more than 10 points from the project, but the points for extra ef
 * C#
   * Object-oriented programming **is mandatory**
 
+If you want to implement the project in any other language, you must add a corresponding `devShell` to https://git.fit.vutbr.cz/NESFIT/dev-envs, create a pull request, get it approved by reviewer `pluskal@vut.cz`, and explicitly notify the reviewer by email as well.
+
 ## Variants
-* ALPHA: Last year's points from Project 2
-  * only points from the last academic year 23/24 are accepted;
+* ALPHA: Last year's points from Project 1
+  * only points from the last academic year are accepted;
   * last year's score `X / 20 × 10`;
 
 * [DELTA: L2/L3 scanner](delta/)

delta/README.md

@@ -1,4 +1,4 @@
-# Project 2 - DELTA: L2/L3 Scanner
+# Project 1 - DELTA: L2/L3 Scanner
 
 ## Assignment
 1. Create a simple network ICMP(v6), ARP/NDP scanner in C/C++/C#. The program discovers what devices are available from a selected range of IP addresses. It prints to standard output the availability status of the given IP addresses at the L2 and L3 layers (7 pts.) 

omega/README.md

@@ -1,4 +1,4 @@
-# Project 2 - OMEGA: L4 Scanner
+# Project 1 - OMEGA: L4 Scanner
 
 ## Assignment
 1. Create a simple TCP and UDP network L4 scanner. The program will scan the specified hostname or IP address(es) (plural IP addresses in the case of multiple answers to DNS query) and ports. It will output to stdout port statuses (open, filtered, closed) (7 pts.) 
@@ -104,4 +104,4 @@ Program output (`stdout`) consists of one or more lines. Individual lines can be
 * Port scanner, 2024. Wikipedia. Online. Available from: https://en.wikipedia.org/w/index.php?title=Port_scanner&oldid=1225200572 [Accessed 17 February 2025]. 
 * DEERING, Steve E. and HINDEN, Bob, 2017. RFC 8200: Internet Protocol, Version 6 (IPv6) Specification. Online. Request for Comments. Internet Engineering Task Force. [Accessed 17 February 2025]. 
 * GILLIGAN, Robert E., BOUND, Jim, THOMSON, Susan and STEVENS, W. Richard, 1999. RFC 2553: Basic Socket Interface Extensions for IPv6. Online. Request for Comments. Internet Engineering Task Force. [Accessed 17 February 2025]. 
-* SATRAPA, Pavel. IPv6: internetový protokol verze 6. CZ. NIC, 2019. ISBN: 978-80-88168-43-0
+* SATRAPA, Pavel. IPv6: internetový protokol verze 6. CZ. NIC, 2019. ISBN: 978-80-88168-43-0