docs: add cargo install instructions to README and website

Author: caffienerd

README.md

@@ -35,8 +35,19 @@ The folder still appears, but you get a clean file count instead of thousands of
 
 ## Installation
 
+### Option 1: Install from crates.io
+The easiest way is to install directly via Cargo (make sure you have Rust installed):
+
 ```bash
-git clone https://github.com/caffienerd/struct-cli.git && cd struct-cli
+cargo install struct-cli
+```
+
+View on [crates.io](https://crates.io/crates/struct-cli)
+
+### Option 2: Install from source
+```
+git clone https://github.com/caffienerd/struct-cli.git
+cd struct-cli
 chmod +x install.sh && ./install.sh
 ```
 
@@ -427,4 +438,4 @@ Found a bug? Want a feature? Open an issue. PRs welcome.
 
 ## License
 
-MIT
+MIT - feel free to do whatever you want with it!

docs/index.html

@@ -364,10 +364,26 @@ <h2 class="text-3xl sm:text-4xl font-bold text-white mb-4">Installation</h2>
         </div>
 
         <div class="space-y-6">
-            <!-- Manual Install -->
+            <!-- Option 1: Install from crates.io -->
             <div class="rounded-xl overflow-hidden bg-[#161b22] border border-github-border terminal-shadow">
                 <div class="flex items-center justify-between px-4 py-3 bg-[#0d1117] border-b border-github-border">
-                    <span class="text-sm text-github-muted font-mono">Manual Install</span>
+                    <span class="text-sm text-github-muted font-mono">Option 1: Install from crates.io</span>
+                    <button onclick="copyCode('cargo install struct-cli')" class="text-xs flex items-center gap-1 text-github-muted hover:text-github-accent transition-colors copy-btn">
+                        <i data-lucide="copy" class="w-3 h-3"></i>
+                        <span>Copy</span>
+                    </button>
+                </div>
+                <div class="p-4 font-mono text-sm space-y-1">
+                    <div class="text-github-muted mb-2">The easiest way is to install directly via Cargo (make sure you have Rust installed):</div>
+                    <div class="text-github-green">$ cargo install struct-cli</div>
+                    <div class="text-github-muted mt-3 text-xs">View on <a href="https://crates.io/crates/struct-cli" target="_blank" rel="noopener" class="text-github-accent hover:underline">crates.io</a></div>
+                </div>
+            </div>
+
+            <!-- Option 2: Install from source -->
+            <div class="rounded-xl overflow-hidden bg-[#161b22] border border-github-border terminal-shadow">
+                <div class="flex items-center justify-between px-4 py-3 bg-[#0d1117] border-b border-github-border">
+                    <span class="text-sm text-github-muted font-mono">Option 2: Install from source</span>
                     <button onclick="copyCode('git clone https://github.com/caffienerd/struct-cli.git && cd struct-cli && chmod +x install.sh && ./install.sh')" class="text-xs flex items-center gap-1 text-github-muted hover:text-github-accent transition-colors copy-btn">
                         <i data-lucide="copy" class="w-3 h-3"></i>
                         <span>Copy</span>