Update README.md (#310)

Author: SVell

README.md

@@ -35,6 +35,8 @@ First, install Rust: https://www.rust-lang.org/tools/install.
 
 Also, make sure you have a working version of [cmake](https://cmake.org/).
 
+Note: cmake is a required dependency.
+
 Next, install the RISC-V target:
 
 ```shell
@@ -61,6 +63,12 @@ This should print the available CLI commands.
 cargo nexus new nexus-project
 ```
 
+And change directory to the new project:
+
+```shell
+cd nexus-project
+```
+
 This will create a new Rust project directory with the following structure:
 
 ```shell
@@ -75,20 +83,12 @@ As an example, you can change the content of `./src/main.rs` to:
 
 ```rust
 #![cfg_attr(target_arch = "riscv32", no_std, no_main)]
-
-fn fib(n: u32) -> u32 {
-    match n {
-        0 => 0,
-        1 => 1,
-        _ => fib(n - 1) + fib(n - 2),
-    }
-}
-
+ 
+use nexus_rt::write_log;
+ 
 #[nexus_rt::main]
 fn main() {
-    let n = 7;
-    let result = fib(n);
-    assert_eq!(result, 13);
+    write_log("Hello, World!\n");
 }
 ```
 
@@ -98,6 +98,11 @@ fn main() {
 cargo nexus run
 ```
 
+You should see the program print:
+```bash
+"Hello, World!"
+```
+
 This command should run successfully. To print the full step-by-step execution trace on the NVM, run:
 
 ```bash
@@ -122,6 +127,8 @@ Finally, load and verify the proof:
 cargo nexus verify
 ```
 
+You should see the program print "Verifying Proof..." and finally "Finished" when complete.
+
 ## Learn More
 
 Run `cargo nexus --help` to see all the available commands.