docs: Update changelog

Author: AntonioND

docs/content/introduction/changelog.md

@@ -18,9 +18,13 @@ weight: -20
     were sent to lwIP, which prevented DHCPv6 from working, for example.
   - TX packets generated by lwIP and passed to DSWiFi weren't handled correctly
     if they were in a fragmented `pbuf`. This has been fixed.
+  - Fix implementations of `ioctl()` and `fcntl()`, as well as the defines
+    `O_RDONLY`, `O_WRONLY`, `O_RDWR` and `O_NONBLOCK`.
 
 - SDK:
 
+  - Added a new package with libcurl named `blocksds-libcurl`.
+  - Added a new example of how to use libcurl with BlocksDS.
   - Improve documentation of exception handler example.
   - Add a bloom example based on the original demo by Bluescrn.
   - Mention the multiple ARM7 cores in the migration guide.