refactor(docs): improve wording, fix section

I've changed the wording and reorganized the text a bit.

There was also a formatting bug in the md5-crypt section.

Author: tessus

docs/core/config/auth/schemes.md

@@ -92,7 +92,9 @@ A strong scheme. The encrypted password will start with `$6$`.
 
 A strong scheme. The encrypted password will start with `$5$`.
 
-### MD5-CRYPT: A weak but common scheme often used in `/etc/shadow`. The
+### MD5-CRYPT
+
+A weak but common scheme often used in `/etc/shadow`. The
 encrypted password will start with `$1$`.
 
 ## Generating Encrypted Passwords
@@ -165,16 +167,10 @@ Password is in cleartext.
 
 ### CRYPT
 
-Traditional DES-crypted password in `/etc/passwd` (e.g.
-"pass" = `vpvKh.SaNbR6s`.
-
-* Dovecot uses libc's `crypt()` function, which means that CRYPT is usually
-  able to recognize MD5-CRYPT and possibly also other password schemes. See
-  all of the `*-CRYPT` schemes at the top of this page.
+Password is encrypted.
 
-* The traditional DES-crypt scheme only uses the first 8 characters of the
-  password, the rest are ignored. Other schemes may have other password length
-  limitations (if they limit the password length at all).
+Dovecot uses libc's `crypt()` function, which means that it is able to recognize 
+all password schemes available on your system (e.g. the ones used in `/etc/passwd`).
 
 #### BLF-CRYPT
 
@@ -184,6 +180,10 @@ Bcrypt based hash. (`$2y$`)
 
 Traditional DES based hash.
 
+The DES-crypt scheme only uses the first 8 characters of the password, the rest 
+is ignored. Other schemes may have other password length limitations (if they 
+limit the password length at all).
+
 ::: warning [[changed,crypt_des_md5_schemes]]
 Disabled by default.
 :::