ssh and ARM-based instructions added

Signed-off-by: Uncle Stinky <uncle.stinky@ghostchain.io>

README.md

@@ -56,6 +56,12 @@ an SSH server.
 sudo apt install openssh-server
 ```
 
+Start SSH Service using _systemctl_.
+
+```bash
+sudo systemctl start ssh
+```
+
 Enable SSH Service to Start on Boot: To ensure that the SSH service automatically
 starts after a reboot, you need to enable it using _systemctl_.
 
@@ -158,6 +164,11 @@ rustup target add wasm32-unknown-unknown --toolchain nightly
 rustup target add wasm32-unknown-unknown --toolchain stable-x86_64-unknown-linux-gnu
 ```
 
+If you are trying to install WebAssembly (wasm) on an ARM-based processor like the ones in Raspberry Pi try this instead:
+```bash
+rustup target add wasm32-unknown-unknown --toolchain stable-aarch64-unknown-linux-gnu
+```
+
 **_IF error try_**
 ```bash
 rustup target add wasm32-unknown-unknown --toolchain default