lab: Refactor wallet section

chapters/introduction/lab/content/wallet/cmdline_wallet.md

@@ -0,0 +1,34 @@
+# First Blockchain transaction
+
+Let's perform our first ever blockchain transaction.
+We will do this on MultiversX blockchain.
+
+First, we need a wallet. Every access, read, write, execute, etc to the blockchain needs to be sign by you with a private key (a wallet).
+
+To create a wallet simply run:
+```shell
+$ mxpy wallet new --format pem --outfile new_wallet.pem
+```
+
+Let's interpret the output:
+```shell
+$ mxpy wallet new --format pem --outfile new_wallet.pem
+Mnemonic: bid blind field captain bar produce brush salute luggage double hole wonder meadow glass destroy giraffe auction square crush catalog knee lizard century nasty
+Wallet address: erd1pfhel08mq6ucua005qgyvwq0el78ap3ytpcugy35yvqfdeq7afqsydkj3d
+```
+
+First, there is a [mnemonic](https://en.wikipedia.org/wiki/Mnemonic): 24 random words.
+These words are used to create your private key (wallet) at any time, so you must store them carefully.
+For now, this is only a test wallet, so just store them in a text file on your computer.
+
+Second, we have a wallet address. This is our blockchain address.
+
+Third, we have a new file `new_wallet.pem` that contains our private key (wallet):
+```shell
+$ cat new_wallet.pem 
+-----BEGIN PRIVATE KEY for erd1pfhel08mq6ucua005qgyvwq0el78ap3ytpcugy35yvqfdeq7afqsydkj3d-----
+NjM1N2UxOGQxYjBjMDk5ZjY1MzM2OWUxZGFiZGM3Mzg1Yjc5ZmY0ZWNlZTBiNWY5
+NWFmNjE1MzZjZDMwODNhOTBhNmY5ZmJjZmIwNmI5OGU3NWVmYTAxMDQ2MzgwZmNm
+ZmM3ZTg2MjQ1ODcxYzQxMjM0MjMwMDk2ZTQxZWVhNDE=
+-----END PRIVATE KEY for erd1pfhel08mq6ucua005qgyvwq0el78ap3ytpcugy35yvqfdeq7afqsydkj3d-----
+```

chapters/introduction/lab/content/wallet/faucet.md

@@ -1,6 +1,6 @@
 # Access a wallet
 
-Go to [Testnet Wallet](https://testnet-wallet.multiversx.com/) and click on "Connect with Keystore"; click Browse and locate your Keystore File [erd1… .json], then put in your password and click "Access Wallet".
+Go to [Testnet Wallet](https://testnet-wallet.multiversx.com/) and click on "PEM" (bottom of the screen); click *"Select a file"* and locate your wallet `new_wallet.pem`.
 
 ![Testnet Wallet](../../media/multiversx-testnet-wallet.png)
 

chapters/introduction/lab/content/wallet/wallet.md

@@ -1,7 +1,9 @@
-# Setting up a Wallet
+# Setting up a Wallet via Browser
 
  We will use [MultiversX Testnet Wallet](https://testnet-wallet.multiversx.com/) to participate in the blockchain as a user.
 
+If you already have a wallet, there is no need to create another one.
+
 Go to [MultiversX Testnet Wallet](https://testnet-wallet.multiversx.com/) and create a new wallet by clicking **Create new one**.
 
 ![Testnet Wallet](../../media/testnet-wallet.png)

config.yaml

@@ -62,7 +62,18 @@ docusaurus:
  - Practical Sessions:
  - Env Setup:
  path: chapters/introduction/lab/content/setup
-
+ - Wallet:
+ path: chapters/introduction/lab/content/wallet
+ extra:
+ - ../../media/
+ subsections:
+ - Cmd line wallet/: cmdline_wallet.md
+ - Wallet/: wallet.md
+ - Keystore/: keystore.md
+ - Access & Faucet: faucet.md
+ - Send Transaction: send_tx.md
+ - Browser Web Wallet: browser_wallet.md
+ - Observer: observer.md
  - Explorer:
  path: chapters/introduction/lab/content/explorer
  extra:
@@ -84,18 +95,6 @@ docusaurus:
  # - ../../quiz/
  subsections:
  - Observers: observer.md
- - Wallet:
- path: chapters/introduction/lab/content/wallet
- extra:
- - ../../media/
- # - ../../quiz/
- subsections:
- - Wallet/: wallet.md
- - Keystore/: keystore.md
- - Access & Faucet: faucet.md
- - Send Transaction: send_tx.md
- - Browser Web Wallet: browser_wallet.md
- - Observer: observer.md
  - Money:
  path: chapters/money/lab/content
  extra: