correction mdx (#258)

Author: DariuszDepta

src/pages/core/architecture/semantics.mdx

@@ -10,7 +10,7 @@ contract and its environment.
 ## Definitions
 
 **Contract** is a [WebAssembly](https://webassembly.org/) code stored in the blockchain's state.
-This has no state except that which is contained in the binary code (eg. static constants).
+This has no state except that which is contained in the binary code (e.g. static constants).
 
 **Instance** refers to a specific instantiation of a contract. It includes a reference to the
 contract's binary as well as a state unique to the instance, which is initialized upon its creation.

src/pages/core/entrypoints/execute.mdx

@@ -9,8 +9,8 @@ import { Callout } from "nextra/components";
 Execute pretty much does what it says on the tin: It executes some routine in your contract after a
 remote (either another contract or some client) sent a message.
 
-This function is called when some wants you to, for example, increment a counter or add a user to a
-lottery. Anything that might modify the state of the contract.
+This function is called when someone wants you to, for example, increment a counter or add a user to
+a lottery. Anything that might modify the state of the contract.
 
 ## Definition
 

src/pages/sylvia.mdx

@@ -20,7 +20,7 @@ contract is a set of traits you implement on your contract type.
 
 The framework generates things like entry point structures, functions dispatching the messages, or
 even helpers for [`MultiTest`](../cw-multi-test). It allows for better control of interfaces,
-including validating their completeness in compile time.
+including validating their completeness at compile time.
 
 Sylvia consists of two crates:
 

src/pages/tutorial.mdx

@@ -3,6 +3,6 @@
 This module is a collection of guides for creating CosmWasm smart contracts. It will lead you step
 by step, and explain relevant topics from the easiest to the trickier ones.
 
-The point of these tutorials is not only to tell you about smart contracts API but also to show you
+The point of these tutorials is not only to tell you about smart contract API but also to show you
 how to write contracts in a clean and maintainable way. We will show you patterns that CosmWasm
 creators established and encourage you to use.