Update getting_started.md

Author: dpc

cargo-crev/src/doc/getting_started.md

@@ -103,7 +103,7 @@ subcommands are provided by shortcuts, such as `verify` for `crate verify`. For
 specific help regarding a subcommand use the `-h` flag.
 
 Note: You can abbreviate most `cargo-crev` subcommands. For example: `cargo crev
-c v`.
+cr v`.
 
 ## Verifying
 
@@ -521,4 +521,4 @@ will be continuously added in the future. Notably:
   you can review a diff between already trusted and current version (`diff` and
   `review --diff` commands).
 - Security and serious flaws can be reported with `review --advisory` and are
-  visible in the `issues` output of `verify`.
+  visible in the `issues` output of `verify`.