docs: fix mangled footnote markers in supported hubs list

Replace bold-wrapped escaped asterisks (**\*** / **\*\***) with typographic
dagger/double-dagger symbols. The asterisk markers at the start of the
footnote definition lines were mangled into [] and [*] by the MkDocs
Markdown renderer; daggers are plain Unicode and render unambiguously.

Author: iMicknl

README.md

@@ -18,10 +18,10 @@ Full documentation is available at **[imicknl.github.io/python-overkiz-api](http
 
 - Atlantic Cozytouch
 - Bouygues Flexom
-- Brandt Smart Control **\***
+- Brandt Smart Control †
 - Hitachi Hi Kumo
 - Nexity Eugénie
-- Rexel Energeasy Connect **\*\***
+- Rexel Energeasy Connect ‡
 - Sauter Cozytouch
 - Simu (LiveIn2)
 - Somfy Connexoon IO
@@ -30,9 +30,9 @@ Full documentation is available at **[imicknl.github.io/python-overkiz-api](http
 - Somfy TaHoma Switch
 - Thermor Cozytouch
 
-**\*** _This server's authentication method isn't supported yet. To use it, obtain an access token (by sniffing the original app) and create a local user on the Overkiz API platform._
+† _This server's authentication method isn't supported yet. To use it, obtain an access token (by sniffing the original app) and create a local user on the Overkiz API platform._
 
-**\*\*** _Requires OAuth credentials provided by Rexel._
+‡ _Requires OAuth credentials provided by Rexel._
 
 ## Installation
 

docs/index.md

@@ -24,10 +24,10 @@ pyOverkiz is an async Python library for interacting with Overkiz-based platform
 
 - Atlantic Cozytouch
 - Bouygues Flexom
-- Brandt Smart Control **\***
+- Brandt Smart Control †
 - Hitachi Hi Kumo
 - Nexity Eugénie
-- Rexel Energeasy Connect **\*\***
+- Rexel Energeasy Connect ‡
 - Sauter Cozytouch
 - Simu (LiveIn2)
 - Somfy Connexoon IO
@@ -36,6 +36,6 @@ pyOverkiz is an async Python library for interacting with Overkiz-based platform
 - Somfy TaHoma Switch
 - Thermor Cozytouch
 
-**\*** _This server's authentication method isn't supported yet. To use it, obtain an access token (by sniffing the original app) and create a local user on the Overkiz API platform._
+† _This server's authentication method isn't supported yet. To use it, obtain an access token (by sniffing the original app) and create a local user on the Overkiz API platform._
 
-**\*\*** _Requires OAuth credentials provided by Rexel._
+‡ _Requires OAuth credentials provided by Rexel._