update: samples overview (#3806)

* Update overview.mdx

* Update docs/samples/overview.mdx

Co-authored-by: Marco Walz <[email protected]>

* Update overview.mdx

---------

Co-authored-by: Marco Walz <[email protected]>

docs/samples/overview.mdx

@@ -9,8 +9,8 @@ Take a look at some sample dapps below and see the possibilities of building on
 ## Hello, world!
 
 The dapp equivalent of 'Hello, World!' with a separate backend and frontend canister serving a web page.
-- [Motoko](https://github.com/dfinity/examples/tree/master/motoko/hello).
-- [Rust](https://github.com/dfinity/examples/tree/master/rust/hello).
+- [Motoko](https://github.com/dfinity/icp-hello-world-motoko).
+- [Rust](https://github.com/dfinity/icp-hello-world-rust).
 - [See a running example](https://6lqbm-ryaaa-aaaai-qibsa-cai.ic0.app/).
 
 ## Developer ladder series
@@ -104,16 +104,9 @@ This tutorial shows how to quickly set up a static website structure, add conten
 
 The example shows how to deploy a web game on ICP, sample code can be found at [samples repo](https://github.com/dfinity/examples/tree/master/hosting).
 
-## Token approve and transfer from
-
-This sample code demonstrates how a canister can be approved to transfer funds on behalf of a user.
-- [Motoko](https://github.com/dfinity/examples/tree/master/motoko/token_transfer_from).
-- [Rust](https://github.com/dfinity/examples/tree/master/rust/token_transfer_from).
-
 ## ICP transfer
 
 This sample code demonstrates how a canister can hold and transfer ICP tokens.
-- [Motoko](https://github.com/dfinity/examples/tree/master/motoko/icp_transfer).
 - [Rust](https://github.com/dfinity/examples/tree/master/rust/icp_transfer).
 
 ## ICRC-2 token swap
@@ -124,10 +117,6 @@ This sample code demonstrates how a canister can hold and transfer ICP tokens.
 
 - [Motoko](https://github.com/dfinity/examples/tree/master/motoko/internet_identity_integration).
 
-## Invoice canister
-
-- [Motoko](https://github.com/dfinity/examples/tree/master/motoko/invoice-canister).
-
 ## Minimal counter dapp
 
 The example dapp shows how to build a very basic dapp with both backend and frontend, using Motoko for the backend functionality and plain HTML and JavaScript for the frontend. The dapp is a simple counter, which will increment a counter by clicking a button in the frontend.
@@ -145,7 +134,7 @@ This is an NFT wallet example dapp that utilizes minted NFTs from the Rust dip72
 
 - [Rust](https://github.com/dfinity/examples/tree/master/rust/nft-wallet).
 
-## Paralell calls
+## Parallel calls
 
 - [Motoko](https://github.com/dfinity/examples/tree/master/motoko/parallel_calls).
 - [Rust](https://github.com/dfinity/examples/tree/master/rust/parallel_calls).
@@ -211,8 +200,9 @@ This example is a simple CRUD dapp.
 - [Motoko](https://github.com/dfinity/examples/tree/master/motoko/token_transfer).
 - [Rust](https://github.com/dfinity/examples/tree/master/rust/token_transfer).
 
-## Token transfer_from
+## Token approve and transfer from
 
+This sample code demonstrates how a canister can be approved to transfer funds on behalf of a user.
 - [Motoko](https://github.com/dfinity/examples/tree/master/motoko/token_transfer_from).
 - [Rust](https://github.com/dfinity/examples/tree/master/rust/token_transfer_from).