Update readme (#368)

* Cosmetic

* Add info

README.md

@@ -225,7 +225,11 @@ More information about this feature can be found [here](deterministic-alarms.md)
   - `0`: Slow and Fast nodes are not updated
   - `> 0`: Slow and Fast nodes are updated the given number of times, then they stop being updated (the value of the configuration node is decremented at every update).
 - Nodes with deterministic random GUIDs as node IDs: `--gn=<number_of_nodes>`
-- Node with opaque identifier (free-format byte string)
+- Nodes of type NodeId and ExpandedNodeId with IdType:
+  - String
+  - Numeric
+  - GUID
+  - Opaque
 - Nodes with 1 kB (ByteString) values: `--vf1k`. The first byte cycles from 0 to 255 in a configurable rate in ms: `--vf1kr`. The values are deterministic but scrambled to ensure that they are not efficiently compressed.
 - Load binary *.PredefinedNodes.uanodes file(s) compiled from an XML NodeSet: `--unf=<PredefinedNodes_uanodes>`
 - Load *.NodeSet2.xml file(s): `--ns2=<NodeSet2_xml>`

tests/OpaqueAndNodeIdTests.cs

@@ -9,7 +9,6 @@ namespace OpcPlc.Tests;
 [TestFixture]
 public class OpaqueAndNodeIdTests : SubscriptionTestsBase
 {
-
     [Test]
     public void TestNodeIdNodes()
     {