scripted-diff: replace ⛰ emoji with $ [skip ci]

-BEGIN VERIFY SCRIPT-
sed -i 's/⛰/$/g' $(git grep -l '⛰')
-END VERIFY SCRIPT-

docs/etcd.md

@@ -15,7 +15,7 @@ on bitcoin mainnet.
 To create a dev build of LND with etcd support use the following command:
 
 ```shell
-⛰  make tags="kvdb_etcd"
+$  make tags="kvdb_etcd"
 ```
 
 The important tag is the `kvdb_etcd`, without which the binary is built without
@@ -30,7 +30,7 @@ directory.
 To start your local etcd instance for testing run:
 
 ```shell
-⛰  ./etcd \
+$  ./etcd \
     --auto-tls \
     --advertise-client-urls=https://127.0.0.1:2379 \
     --listen-client-urls=https://0.0.0.0:2379 \
@@ -50,7 +50,7 @@ through command line flags or in `lnd.conf`.
 Sample command line:
 
 ```shell
-⛰  ./lnd-debug \
+$  ./lnd-debug \
     --db.backend=etcd \
     --db.etcd.host=127.0.0.1:2379 \
     --db.etcd.certfile=/home/user/etcd/bin/default.etcd/fixtures/client/cert.pem \