minor formatting issues

Author: david-driscoll

src/Protocol/Client/Capabilities/SignatureHelpCapability.cs

@@ -1,3 +1,5 @@
+using Newtonsoft.Json;
+
 namespace OmniSharp.Extensions.LanguageServer.Protocol.Client.Capabilities
 {
     public class SignatureHelpCapability : DynamicCapability, ConnectedCapability<ISignatureHelpHandler>
@@ -6,6 +8,7 @@ public class SignatureHelpCapability : DynamicCapability, ConnectedCapability<IS
         /// The client supports the following `SignatureInformation`
         /// specific properties.
         /// </summary>
+        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
         public SignatureInformationCapability SignatureInformation { get; set; }
     }
 }

src/Protocol/Models/ApplyWorkspaceEditParams.cs

@@ -12,7 +12,7 @@ public class ApplyWorkspaceEditParams
         /// stack to undo the workspace edit.
         /// </summary>
         [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
-        public string Label {get;set;}
+        public string Label { get; set; }
         /// <summary>
         /// The edits to apply.
         /// </summary>