update packages

add some docs

Sources/Blockchain/Models/Block.swift

@@ -17,6 +17,19 @@ class Block {
     var nonce: Int
     var timestamp: Int
     
+    /**
+        Initialize a block with the provided parts and specifications.
+     
+        - parameters:
+            - hash: The hash of the block
+            - data: The data of the block
+            - previousHash: The hash of the previous block
+            - index: The index of the block
+            - nonce: The nonce of the block
+            - timestamp: The timestamp of the block
+     
+        - returns: A beautiful new block for the blockchain.
+     */
     init(hash: String = "", data: String = "", previousHash: String = "", index: Int = 0, nonce: Int = 0, timestamp: Int = 0) {
         self.data = data
         self.previousHash = previousHash
@@ -26,10 +39,20 @@ class Block {
         self.hash = hash
     }
     
+    /**
+        Generate the hash of the block.
+     
+        - returns: The hash of the block
+     */
     func generateHash() -> String {
         return data.sha256()
     }
     
+    /**
+        Generate the timestamp of the block
+     
+        - returns: The timestamp of the block
+     */
     func generateTimestamp() -> Int {
         return Int(Date().timeIntervalSince1970)
     }