rm all $

allow users to directly copy bash snippets from the website and paste them on linux. otherwise, users get `$: command not found`

Author: Elli610

src/content/docs/en/developers/guides/running-a-scroll-node.mdx

@@ -45,9 +45,9 @@ You will need access to a fully-synced **Ethereum Mainnet** or **Ethereum Sepoli
 1. Clone the latest version of `l2geth`. 
 
     ```bash
-    $ git clone https://github.com/scroll-tech/go-ethereum l2geth-source
-    $ cd l2geth-source
-    $ git checkout VERSION
+    git clone https://github.com/scroll-tech/go-ethereum l2geth-source
+    cd l2geth-source
+    git checkout VERSION
     ```    
 2. Ensure that you are using version 1.20 of `go`.
 3. Install the gcc compiler: `sudo apt install build-essential`.
@@ -63,7 +63,7 @@ Please consider opening port `30303`(UDP & TCP) and enabling discovery so that o
 1. Run `l2geth`.
 
     ```bash
-    $ l2geth --scroll \
+    l2geth --scroll \
         --datadir "./l2geth-datadir" \
         --gcmode archive --cache.noprefetch \
         --http --http.addr "0.0.0.0" --http.port 8545 --http.api "eth,net,web3,debug,scroll" \
@@ -82,7 +82,7 @@ Please consider opening port `30303`(UDP & TCP) and enabling discovery so that o
 2. In a separate shell, you can now attach to `l2geth`.
 
     ```bash
-    $ l2geth attach "./l2geth-datadir/geth.ipc"
+    l2geth attach "./l2geth-datadir/geth.ipc"
 
     > admin.peers.length
     5
@@ -111,7 +111,7 @@ Running the node in Docker might have a significant impact on node performance.
 1. Run the `l2geth` container using the name `l2geth-docker`:
 
     ```bash
-    $ docker run --rm --name l2geth-docker -v $(pwd):/volume -p 8545:8545 -e RUST_LOG="info" -e CHAIN_ID="534352" scrolltech/l2geth:latest \
+    docker run --rm --name l2geth-docker -v $(pwd):/volume -p 8545:8545 -e RUST_LOG="info" -e CHAIN_ID="534352" scrolltech/l2geth:latest \
         --scroll \
         --datadir "/volume/l2geth-datadir" \
         --gcmode archive --cache.noprefetch \
@@ -123,7 +123,7 @@ Running the node in Docker might have a significant impact on node performance.
 2. In a separate shell, you can now attach to `l2geth`.
 
     ```bash
-    $ docker exec -it l2geth-docker geth attach "/volume/l2geth-datadir/geth.ipc"
+    docker exec -it l2geth-docker geth attach "/volume/l2geth-datadir/geth.ipc"
 
     > admin.peers.length
     5