Change all references of "Licence" to "License" to comply with Maxmind URL (#229)

"Licence" -> "License"

source/manual/how-tos/maxmind_geo_ip.rst

@@ -11,10 +11,10 @@ Create An Account
 Goto https://www.maxmind.com/en/geolite2/signup and create your account. Note that the email address you provide will be used to send you the link you will need to enter in OPNsense, so make sure its a real account.
 
 ######################
-Generate Licence Key
+Generate License Key
 ######################
 
-Once you have created an account you'll need to create a license key. Click in the "My Licence Key" link and generate a key. Save the key ID somewhere safe!!!
+Once you have created an account you'll need to create a license key. Click in the "My License Key" link and generate a key. Save the key ID somewhere safe!!!
 
 You do not need to download the config at this point.
 
@@ -22,9 +22,9 @@ You do not need to download the config at this point.
 Create Link
 #############
 
-Now we need to create the link we'll need in OPNsense, all you need to do now is to replace the 'My Licence key' part of the link below with your license key.
+Now we need to create the link we'll need in OPNsense, all you need to do now is to replace the 'My License key' part of the link below with your license key.
 
-https://download.maxmind.com/app/geoip_download?edition_id=GeoLite2-Country-CSV&licence_key=My_Licence_key&suffix=zip
+https://download.maxmind.com/app/geoip_download?edition_id=GeoLite2-Country-CSV&license_key=My_License_key&suffix=zip
 
 You can check that you have done it correctly by just pasting the link into a browser, it should download the zip file.