fix solana-install syntax (#12043)

```
solana-install info
solana-install deploy
solana-install update
solana-install run
```

(cherry picked from commit 38f36a7a7a)

Co-authored-by: pk <4514654+pkrasam@users.noreply.github.com>

docs/src/implemented-proposals/installer.md

@@ -161,7 +161,7 @@ OPTIONS:
 ```
 
 ```text
-solana-install-info
+solana-install info
 displays information about the current installation
 
 USAGE:
@@ -173,7 +173,7 @@ FLAGS:
 ```
 
 ```text
-solana-install-deploy
+solana-install deploy
 deploys a new update
 
 USAGE:
@@ -188,7 +188,7 @@ ARGS:
 ```
 
 ```text
-solana-install-update
+solana-install update
 checks for an update, and if available downloads and applies it
 
 USAGE:
@@ -199,7 +199,7 @@ FLAGS:
 ```
 
 ```text
-solana-install-run
+solana-install run
 Runs a program while periodically checking and applying software updates
 
 USAGE: