Add Mastodon link and verification snippit (#222)

spyder_website.lektorproject

@@ -40,7 +40,7 @@ theme_pipe_color = "#ee1c24"
 custom_css = "/static/css/custom_styles.css, https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css, 'https://fonts.googleapis.com/css2?family=Figtree:ital,wght@0,300;0,400;0,700;1,300;1,400;1,700&family=Manrope:wght@200;300;400;500;600;700&display=swap'"
 custom_js_main =
 custom_js_singlepage = "/static/js/custom_scripts.js"
-custom_head_content =
+custom_head_content = "<link rel='me' href='https://fosstodon.org/@Spyder'>"
 content_security_policy = false
 content_security_policy_frame_src =
 content_security_policy_script_src =
@@ -51,7 +51,7 @@ nav_logo_path = "/static/images/spyder_logo.png"
 nav_logo_text = ""
 nav_extralinks = "Docs: https://docs.spyder-ide.org/"
 nav_subsection_subtitle = false
-footer_links = "Github: https://github.com/spyder-ide/spyder, Twitter: https://twitter.com/spyder_ide, Facebook: https://www.facebook.com/SpyderIDE/, Google Groups: https://groups.google.com/group/spyderlib, Instagram: https://instagram.com/spyderide"
+footer_links = "Github: https://github.com/spyder-ide/spyder, Twitter: https://twitter.com/spyder_ide, Mastodon: https://fosstodon.org/@Spyder, Instagram: https://instagram.com/spyderide, Facebook: https://www.facebook.com/SpyderIDE/, Google Groups: https://groups.google.com/group/spyderlib"
 footer_license_name = "MIT and others"
 footer_license_link = "https://github.com/spyder-ide/website-spyder/blob/master/NOTICE.txt"
 footer_custom_line = "Feature icons by <a href='https://www.freepik.com/' target='_blank' rel='noopener noreferrer' title='Freepik'>Freepik</a> from <a href='https://www.flaticon.com/' target='_blank' rel='noopener noreferrer' title='Flaticon'>Flaticon.com</a>"