reth: rename “vanilla” to “OP Reth”; align README terminology (#547)

* Update reth-entrypoint

* Update README.md

* Update reth/README.md

* Update reth/README.md

* Update reth/README.md

---------

Co-authored-by: Danyal Prout <git@dany.al>

Author: Forostovec

reth/README.md

@@ -1,6 +1,6 @@
 # Running a Reth Node
 
-This is a unified implementation of the Reth node set up that supports running both standard Reth or Base Reth with Flashblocks support.
+This is a unified implementation of the Reth node set up that supports running both OP Reth or Base Reth with Flashblocks support.
 
 ## Setup
 
@@ -12,15 +12,15 @@ This is a unified implementation of the Reth node set up that supports running b
 
 Use the `NODE_TYPE` environment variable to select the implementation:
 
-- `NODE_TYPE=vanilla` - Standard Reth implementation (default)
+- `NODE_TYPE=vanilla` - OP Reth implementation (default)
 - `NODE_TYPE=base` - Base L2 Reth implementation with Flashblocks support
 
 ## Running the Node
 
 The node follows the standard `docker-compose` workflow in the master README.
 
 ```bash
-# Run standard Reth node
+# Run OP Reth node
 CLIENT=reth docker-compose up
 
 # Run Base L2 Reth node with Flashblocks support

reth/reth-entrypoint

@@ -28,7 +28,7 @@ if [[ "$NODE_TYPE" == "base" ]]; then
     echo "Starting Base Reth node"
     BINARY="./base-reth-node"
 else
-    echo "Starting vanilla Reth node"
+    echo "Starting OP Reth node"
     BINARY="./op-reth"
 fi