examples: link to encrypted-net-messages

Author: markus-wa

examples/README.md

@@ -8,6 +8,7 @@ Here you can find a overview of examples on how to use demoinfocs-golang.
 |[nade-trajectories](nade-trajectories)|Map overview with grenade trajectories|
 |[entities](entities)|Using unhandled data from entities (`Parser.ServerClasses()`)|
 |[net-messages](net-messages)|Parsing and handling custom net-messages|
+|[encrypted-net-messages](encrypted-net-messages)|Parsing and handling encrypted net-messages (e.g. text chat in MM demos)|
 |[print-events](print-events)|Printing kills, scores & chat messages|
 |[mocking](mocking)|Using the `fake` package to write unit tests for your code|
 |[web-assembly](web-assembly)|Using the library from JavaScript (browser/node) with [WebAssembly](https://webassembly.org/)|

examples/encrypted-net-messages/README.md

@@ -0,0 +1,14 @@
+# Parsing & handling encrypted net-messages
+
+See also [../net-messages](net-messages) for regular net-messages.
+
+This example shows how to have the parser deal with encrypted net-messages.
+
+For Valve MM games, the decryption key can be obtained from `.dem.info` files using `MatchInfoDecryptionKey()`.
+The key then needs to be passed to `ParserConfig.NetMessageDecryptionKey`.
+
+## Run
+
+    go run enc_net_nsg.go -demo path/to/demo.dem -info path/to/demo.dem.info
+
+This prints chat messages from the passed demo (assuming the `.dem.info` file contains the correct decryption key).