doc: add SSID and PASS env sets, update deploy.sh accordingly

deploy.sh

@@ -22,6 +22,16 @@ then
     echo "install with this command: cargo install cargo-espflash"
     exit 1
 fi
+if [ -z "$SSID" ]
+then
+    echo "Please set environment variable SSID to the SSID of the wifi you'll use to configure your sphinx-key."
+    exit 1
+fi
+if [ -z "$PASS" ]
+then
+    echo "Please set environment variable PASS to the password of the wifi you'll use to configure your sphinx-key."
+    exit 1
+fi
 for FILE in /dev/tty.*
 do
     if check_port $FILE 

sphinx-key/README.md

@@ -75,6 +75,8 @@ cargo generate --vcs none --git https://github.com/esp-rs/esp-idf-template cargo
 - `cd ~`
 - `git clone https://github.com/stakwork/sphinx-key.git`
 - `cd sphinx-key`
+- `export SSID=wifi_name_you'll_use_to_configure_sphinx_key}`
+- `export PASS=password_of_wifi_you'll_use_to_configure_sphinx_key`
 - `./deploy.sh`. This commands takes a while, it builds and flashes everything!
 - You will eventually be shown the logs of the signer.
 - Wait for the message `Waiting for data from the phone!`. The LED should blink green.