Update quickstart.md (#1721)

docs/2.develop/quickstart.md

@@ -88,13 +88,13 @@ The contract presents 2 methods: `set_greeting` and `get_greeting`. The first on
 
 ## Testing
 
-When writing smart contracts it is very important to test all methods exhaustively. This
-project has both **unit** and **integration** tests. Before digging in their code,
+When writing smart contracts, it is very important to test all methods exhaustively. This
+project has both **unit** and **integration** tests. Before digging into their code,
 go ahead and execute them using the command `npm run test`.
 
 ### Unit test
 Unit tests check individual functions in the smart contract. They are written in the
-same language than the smart contract. If your contract is in Rust you will find the tests at the bottom of
+same language as the smart contract. If your contract is in Rust, you will find the tests at the bottom of
 each `.rs` file.
 
 <CodeTabs>
@@ -107,8 +107,8 @@ each `.rs` file.
 
 ### Integration test
 
-Integration tests can be written in both Javascript and Rust. They work by deploying the contract in a **sandbox** and executing methods on it.
-In this way, integration tests simulate interactions from users in a realistic scenario.
+Integration tests can be written in both Javascript and Rust. They work by deploying the contract in a **sandbox** and executing its methods.
+In this way, integration tests simulate user interactions in a realistic scenario.
 You will find the integration tests for `hello-near` in `integration-tests/`.
 
 <CodeTabs>
@@ -125,8 +125,8 @@ You will find the integration tests for `hello-near` in `integration-tests/`.
 
 That's it for our first quickstart tutorial. You have now seen a fully functional contract with a minimal user interface and testing.
 
-Go ahead and check other [examples](/tutorials/examples/guest-book) or proceed straight to the [Develop section](./contracts/anatomy.md) to know how to write your own contract.
+Go ahead and check other [examples](/tutorials/examples/guest-book) or proceed straight to the [Develop section](./contracts/anatomy.md) to learn how to write your own contract.
 
-If you have any questions, do not hesitate in joining us on [Discord](https://near.chat). We regularly host Office Hours, in which you can join our voice channel and ask questions.
+If you have any questions, do not hesitate to join us on [Discord](https://near.chat). We regularly host Office Hours, in which you can join our voice channel and ask questions.
 
 Happy coding!