updating help doc URL

Author: sudhann

src/IO.ClickSend/ClickSend.Model/FaxMessage.cs

@@ -37,7 +37,7 @@ public partial class FaxMessage :  IEquatable<FaxMessage>, IValidatableObject
         /// <param name="to">Recipient fax number in E.164 format. (required).</param>
         /// <param name="listId">Your list ID if sending to a whole list. Can be used instead of &#x27;to&#x27;..</param>
         /// <param name="from">Your sender id. Must be a valid fax number..</param>
-        /// <param name="schedule">Leave blank for immediate delivery. Your schedule time in unix format https://help.clicksend.com/en/articles/44235-what-is-a-unix-timestampp.</param>
+        /// <param name="schedule">Leave blank for immediate delivery. Your schedule time in unix format https://help.clicksend.com/en/articles/44235-what-is-a-unix-timestamp.</param>
         /// <param name="customString">Your reference. Will be passed back with all replies and delivery reports..</param>
         /// <param name="country">Recipient country..</param>
         /// <param name="fromEmail">An email address where the reply should be emailed to..</param>

src/IO.ClickSend/ClickSend.Model/MmsCampaign.cs

@@ -36,7 +36,7 @@ public partial class MmsCampaign :  IEquatable<MmsCampaign>, IValidatableObject
         /// <param name="listId">Your list id. (required).</param>
         /// <param name="name">Your campaign name. (required).</param>
         /// <param name="body">Your campaign message. (required).</param>
-        /// <param name="from">Your sender id - more info: https://help.clicksend.com/en/collections/57584-numbers-sender-ids..</param>
+        /// <param name="from">Your sender id - more info: https://help.clicksend.com/en/collections/57584-numbers-sender-ids</param>
         /// <param name="schedule">Your schedule timestamp. (default to 0).</param>
         /// <param name="subject">Subject of MMS campaign. (required).</param>
         /// <param name="mediaFile">URL pointing to media file. (required).</param>

src/IO.ClickSend/ClickSend.Model/SmsCampaign.cs

@@ -36,7 +36,7 @@ public partial class SmsCampaign :  IEquatable<SmsCampaign>, IValidatableObject
         /// <param name="listId">Your list id. (required).</param>
         /// <param name="name">Your campaign name. (required).</param>
         /// <param name="body">Your campaign message. (required).</param>
-        /// <param name="from">Your sender id - more info: https://help.clicksend.com/en/collections/57584-numbers-sender-ids..</param>
+        /// <param name="from">Your sender id - more info: https://help.clicksend.com/en/collections/57584-numbers-sender-ids</param>
         /// <param name="schedule">Your schedule timestamp. (default to 0).</param>
         /// <param name="urlToShorten">url to be shortened add http://smsg.io/xxxxx&#x60; to the body as a placeholder..</param>
         public SmsCampaign(int? listId = default(int?), string name = default(string), string body = default(string), string from = default(string), int? schedule = 0, string urlToShorten = default(string))

src/IO.ClickSend/ClickSend.Model/SmsMessage.cs

@@ -33,7 +33,7 @@ public partial class SmsMessage :  IEquatable<SmsMessage>, IValidatableObject
         /// <summary>
         /// Initializes a new instance of the <see cref="SmsMessage" /> class.
         /// </summary>
-        /// <param name="from">Your sender id - more info: https://help.clicksend.com/en/collections/57584-numbers-sender-ids..</param>
+        /// <param name="from">Your sender id - more info: https://help.clicksend.com/en/collections/57584-numbers-sender-ids</param>
         /// <param name="body">Your message. (required).</param>
         /// <param name="to">Recipient phone number in E.164 format..</param>
         /// <param name="source">Your method of sending e.g. &#x27;wordpress&#x27;, &#x27;php&#x27;, &#x27;c#&#x27;. (default to &quot;sdk&quot;).</param>