Complete the cryptocurrency transaction algorithm.

Blockchain_2/Create a CryptoCurrency/readme.md

@@ -1,17 +1,17 @@
                 HOW TO RUN THE PROGRAM
 
-# Step 1:
+# Step 1: Run the files
 - To run the program, U have to run 3 hadcoin_node...py files separately on the terminal. 
 
 # Step 2: Get the chain
 - Open the postman software 
-- Type these url in order to get the genesis block(first block) -> press enter:
+- Use these url in order to get the genesis block(first block) -> press enter:
     GET:    http://127.0.0.1:5002/get_chain 
     GET:    http://127.0.0.1:5003/get_chain
     GET:    http://127.0.0.1:5004/get_chain
 
 # Step 3: Connect all the node together:
-- Chose the raw feature, Json format 
+- Chose the raw feature of the body, Json format 
 - copy the url set in the nodes.json 
 - Paste the url set to the raw box, but have to remove to the url that has the same port to the current using port:
     EX: 
@@ -24,5 +24,29 @@
     }
 - Press enter, then repeat to other url as well. 
 
-# Step 4: 
-- 
+# Step 4: Check the chain valid or not
+- Use
+    POST: http://127.0.0.1:5002/is_valid
+    POST: http://127.0.0.1:5003/is_valid
+    POST: http://127.0.0.1:5004/is_valid
+- Get this result:
+    'message': 'All good. The Blockchain is valid.'
+    Or
+    'message': 'Houston, we have a problem. The Blockchain is not valid.'
+
+# step 5: Make transaction.
+- Copy and paste transaction.json file to the raw box of body feature
+- Use 
+    POST: http://127.0.0.1:5002/add_transaction
+
+# step 6: Mine block to get the block chain
+- use 
+    GET: http://127.0.0.1:5002/mine_block
+
+# step 6: get update to other nodes
+- use 
+    GET: http://127.0.0.1:5003/replace_chain
+    GET: http://127.0.0.1:5004/replace_chain
+
+
+# whenever you add transaction, you have to use the url replace_chain to get the chain update, then use the url has get_chain to see full chain of blockchain.