diff --git a/templates/boilerplate/config/communication.js b/templates/boilerplate/config/communication.js
index fc410142d..035d95def 100644
--- a/templates/boilerplate/config/communication.js
+++ b/templates/boilerplate/config/communication.js
@@ -6,7 +6,7 @@ module.exports = {
     connection: {
       host: "localhost", // Host of the blockchain node
       port: 8546, // Port of the blockchain node
-      type: "ws" // Type of connection (ws or rps)
+      type: "ws" // Type of connection (ws or rpc)
     }
   }
 };
diff --git a/templates/boilerplate/config/contracts.js b/templates/boilerplate/config/contracts.js
index 086d2f0b4..37f7e7c06 100644
--- a/templates/boilerplate/config/contracts.js
+++ b/templates/boilerplate/config/contracts.js
@@ -1,11 +1,28 @@
 module.exports = {
-  // default applies to all enviroments
+  // default applies to all environments
   default: {
-    // rpc to deploy the contracts
+    // Blockchain node to deploy the contracts
     deployment: {
-      host: "localhost",
-      port: 8545,
-      type: "rpc"
+      host: "localhost", // Host of the blockchain node
+      port: 8545, // Port of the blockchain node
+      type: "rpc" // Type of connection (ws or rpc),
+      // Accounts to use instead of the default account to populate your wallet
+      /*,accounts: [
+        {
+          privateKey: "your_private_key",
+          balance: "5 ether"  // You can set the balance of the account in the dev environment
+                              // Balances are in Wei, but you can specify the unit with its name
+        },
+        {
+          privateKeyFile: "path/to/file" // You can put more than one key, separated by , or ;
+        },
+        {
+          mnemonic: "12 word mnemonic",
+          addressIndex: "0", // Optionnal. The index to start getting the address
+          numAddresses: "1", // Optionnal. The number of addresses to get
+          hdpath: "m/44'/60'/0'/0/" // Optionnal. HD derivation path
+        }
+      ]*/
     },
     // order of connections the dapp should connect to
     dappConnection: [
@@ -21,4 +38,4 @@ module.exports = {
       //}
     }
   }
-}
+};
diff --git a/templates/demo/config/communication.js b/templates/demo/config/communication.js
index bb0beee5f..8c4d1f918 100644
--- a/templates/demo/config/communication.js
+++ b/templates/demo/config/communication.js
@@ -6,7 +6,7 @@ module.exports = {
     connection: {
       host: "localhost", // Host of the blockchain node
       port: 8546, // Port of the blockchain node
-      type: "ws" // Type of connection (ws or rps)
+      type: "ws" // Type of connection (ws or rpc)
     }
   }
 };
diff --git a/templates/demo/config/contracts.js b/templates/demo/config/contracts.js
index 6bfd7d3a4..bf2164b32 100644
--- a/templates/demo/config/contracts.js
+++ b/templates/demo/config/contracts.js
@@ -1,11 +1,28 @@
 module.exports = {
-  // default applies to all enviroments
+  // default applies to all environments
   default: {
-    // rpc to deploy the contracts
+    // Blockchain node to deploy the contracts
     deployment: {
-      host: "localhost",
-      port: 8545,
-      type: "rpc"
+      host: "localhost", // Host of the blockchain node
+      port: 8545, // Port of the blockchain node
+      type: "rpc" // Type of connection (ws or rpc),
+      // Accounts to use instead of the default account to populate your wallet
+      /*,accounts: [
+        {
+          privateKey: "your_private_key",
+          balance: "5 ether"  // You can set the balance of the account in the dev environment
+                              // Balances are in Wei, but you can specify the unit with its name
+        },
+        {
+          privateKeyFile: "path/to/file" // You can put more than one key, separated by , or ;
+        },
+        {
+          mnemonic: "12 word mnemonic",
+          addressIndex: "0", // Optionnal. The index to start getting the address
+          numAddresses: "1", // Optionnal. The number of addresses to get
+          hdpath: "m/44'/60'/0'/0/" // Optionnal. HD derivation path
+        }
+      ]*/
     },
     // order of connections the dapp should connect to
     dappConnection: [
@@ -17,8 +34,8 @@ module.exports = {
     contracts: {
       SimpleStorage: {
         fromIndex: 0,
-        args: [ 100 ]
+        args: [100]
       }
     }
   }
-}
+};
diff --git a/templates/simple/contracts.js b/templates/simple/contracts.js
index 086d2f0b4..37f7e7c06 100644
--- a/templates/simple/contracts.js
+++ b/templates/simple/contracts.js
@@ -1,11 +1,28 @@
 module.exports = {
-  // default applies to all enviroments
+  // default applies to all environments
   default: {
-    // rpc to deploy the contracts
+    // Blockchain node to deploy the contracts
     deployment: {
-      host: "localhost",
-      port: 8545,
-      type: "rpc"
+      host: "localhost", // Host of the blockchain node
+      port: 8545, // Port of the blockchain node
+      type: "rpc" // Type of connection (ws or rpc),
+      // Accounts to use instead of the default account to populate your wallet
+      /*,accounts: [
+        {
+          privateKey: "your_private_key",
+          balance: "5 ether"  // You can set the balance of the account in the dev environment
+                              // Balances are in Wei, but you can specify the unit with its name
+        },
+        {
+          privateKeyFile: "path/to/file" // You can put more than one key, separated by , or ;
+        },
+        {
+          mnemonic: "12 word mnemonic",
+          addressIndex: "0", // Optionnal. The index to start getting the address
+          numAddresses: "1", // Optionnal. The number of addresses to get
+          hdpath: "m/44'/60'/0'/0/" // Optionnal. HD derivation path
+        }
+      ]*/
     },
     // order of connections the dapp should connect to
     dappConnection: [
@@ -21,4 +38,4 @@ module.exports = {
       //}
     }
   }
-}
+};