docs: correct copied parameter descriptions

Several parameter descriptions were carried over from unrelated variables and
described the wrong attribute. Both country name parameters claimed to document
a Common Name, the client organizational unit name repeated the Common Name text
and the two client content parameters described a passphrase and a key
algorithm.

The client content parameters now follow the wording already used for their root
and intermediate counterparts. The README tables were regenerated with
readme-generator, which also normalises the column padding of the previously
hand-edited rows.

Additionally fix the misspelled repository owner in the homepage URL and a typo
in the galaxy description.

Co-authored-by: Copilot <copilot@github.com>

meta/main.yaml

@@ -2,7 +2,7 @@ dependencies: []
 galaxy_info:
   author: "Markus Pesch"
   company: "Cryptic Systems"
-  description: "Role to create and managed an existing PKI infrastructure"
+  description: "Role to create and manage an existing PKI infrastructure"
   galaxy_tags:
   - ca
   - ssl