Add attempts and steps to update rust and cargo

Author: CoderSales

documentation3/C01-TompsonBook-Start.md

@@ -1,2 +1,25 @@
 # Thompson Book Start
 
+p.18
+
+```bash
+cargo install-update -a
+
+error: no such command: `install-update`
+
+        View all installed commands with `cargo --list`
+        Find a package to install `install-update` with `cargo search cargo-install-update`   
+
+cargo install-update
+
+error: no such command: `install-update`
+
+        View all installed commands with `cargo --list`
+        Find a package to install `install-update` with `cargo search cargo-install-update`   
+
+cargo search cargo-install-update
+
+cargo install cargo-update
+```
+
+installs cargo-update