README: Remove stride from instantiate2 chains.

README.md

@@ -106,7 +106,7 @@ Note that most `tx_*` helper functions expose a `.with_key(key: &str)` builder f
 	* `.with_msg(msg: serde_json::Value)`
 	* `.with_label(label: &str)`
   * Notable optional builder calls:
-    * `.with_chain_name(chain_name: impl Into<String>)` - Should be on of `"osmosis" | "neutron" | "stride"` or one of the registered chain names from `.with_chain`
+    * `.with_chain_name(chain_name: impl Into<String>)` - Should be on of `"osmosis" | "neutron"` or one of the registered chain names from `.with_chain`
 
 #### Tokens