Added minimal task docs.

Author: drieseng

src/SshNet.BuildTools.Git/Commit.cs

@@ -5,6 +5,9 @@
 
 namespace SshNet.BuildTools.Git
 {
+    /// <summary>
+    /// Commits changes in a given Git repository.
+    /// </summary>
     public class Commit : Task
     {
         /// <summary>
@@ -32,6 +35,10 @@ public class Commit : Task
         /// </value>
         [Output]
         public string Sha1 { get; set; }
+
+        /// <summary>
+        /// Commits changes in the specified repository.
+        /// </summary>
         public override bool Execute()
         {
             using (var repo = new Repository(WorkingDirectory))

src/SshNet.BuildTools.Git/Push.cs

@@ -4,6 +4,9 @@
 
 namespace SshNet.BuildTools.Git
 {
+    /// <summary>
+    /// Pushes changes from a local Git repository to a its remote repository.
+    /// </summary>
     public class Push : Task
     {
         /// <summary>
@@ -23,6 +26,9 @@ public class Push : Task
         /// </value>
         public ITaskItem Credentials { get; set; }
 
+        /// <summary>
+        /// Pushes changes from the specified local repository to a its remote repository.
+        /// </summary>
         public override bool Execute()
         {
             using (var repo = new Repository(WorkingDirectory))

src/SshNet.BuildTools.Git/Stage.cs

@@ -5,6 +5,9 @@
 
 namespace SshNet.BuildTools.Git
 {
+    /// <summary>
+    /// Promotes changes to the staging area of a given Git repository.
+    /// </summary>
     public class Stage : Task
     {
         /// <summary>
@@ -16,6 +19,9 @@ public class Stage : Task
         [Required]
         public string WorkingDirectory { get; set; }
 
+        /// <summary>
+        /// Stages changes in the specified working directory.
+        /// </summary>
         public override bool Execute()
         {
             using (var repo = new Repository(WorkingDirectory))