Change branch name from master to main. Fix grammar (#1737)

Author: Marusyk

README.md

@@ -56,18 +56,18 @@ The basic scenario can be run locally using docker-compose, and also deployed to
 
 ### Advanced scenario
 
-The Advanced scenario can be run only in a Kubernetes cluster. Currently this scenario is the same as a basic scenario with the following differences:
+The Advanced scenario can be run only in a Kubernetes cluster. Currently, this scenario is the same as a basic scenario with the following differences:
 
 - [Deploy to AKS with a Service Mesh for resiliency](https://github.com/dotnet-architecture/eShopOnContainers/wiki/Deploy-to-Azure-Kubernetes-Service-(AKS))
 
-In the future more features will be implemented in the advanced scenario.
+In the future, more features will be implemented in the advanced scenario.
 
 
 ## IMPORTANT NOTES!
 
-**You can use either the latest version of Visual Studio or simply Docker CLI and .NET CLI for Windows, Mac and Linux**.
+**You can use either the latest version of Visual Studio or simply Docker CLI and .NET CLI for Windows, Mac, and Linux**.
 
-**Note for Pull Requests (PRs)**: We accept pull request from the community. When doing it, please do it onto the **DEV branch** which is the consolidated work-in-progress branch. Do not request it onto **master** branch.
+**Note for Pull Requests (PRs)**: We accept pull requests from the community. When doing it, please do it onto the **DEV branch** which is the consolidated work-in-progress branch. Do not request it onto **main** branch.
 
 **NEWS / ANNOUNCEMENTS**
 Do you want to be up-to-date on .NET Architecture guidance and reference apps like eShopOnContainers? --> Subscribe by "WATCHING" this new GitHub repo: https://github.com/dotnet-architecture/News
@@ -86,15 +86,15 @@ eShopOnContainers is updated to .NET 5 "wave" of technologies. Not just compilat
 
 ### Architecture overview
 
-This reference application is cross-platform at the server and client side, thanks to .NET 5 services capable of running on Linux or Windows containers depending on your Docker host, and to Xamarin for mobile apps running on Android, iOS or Windows/UWP plus any browser for the client web apps.
-The architecture proposes a microservice oriented architecture implementation with multiple autonomous microservices (each one owning its own data/db) and implementing different approaches within each microservice (simple CRUD vs. DDD/CQRS patterns) using Http as the communication protocol between the client apps and the microservices and supports asynchronous communication for data updates propagation across multiple services based on Integration Events and an Event Bus (a light message broker, to choose between RabbitMQ or Azure Service Bus, underneath) plus other features defined at the [roadmap](https://github.com/dotnet-architecture/eShopOnContainers/wiki/Roadmap).
+This reference application is cross-platform at the server and client-side, thanks to .NET 5 services capable of running on Linux or Windows containers depending on your Docker host, and to Xamarin for mobile apps running on Android, iOS, or Windows/UWP plus any browser for the client web apps.
+The architecture proposes a microservice oriented architecture implementation with multiple autonomous microservices (each one owning its own data/db) and implementing different approaches within each microservice (simple CRUD vs. DDD/CQRS patterns) using HTTP as the communication protocol between the client apps and the microservices and supports asynchronous communication for data updates propagation across multiple services based on Integration Events and an Event Bus (a light message broker, to choose between RabbitMQ or Azure Service Bus, underneath) plus other features defined at the [roadmap](https://github.com/dotnet-architecture/eShopOnContainers/wiki/Roadmap).
 
 ![](img/eshop_logo.png)
 ![](img/eShopOnContainers-architecture.png)
 
 ## Related documentation and guidance
 
-You can find the related reference **Guide/eBook** focusing on **architecting and developing containerized and microservice based .NET Applications** (download link available below) which explains in detail how to develop this kind of architectural style (microservices, Docker containers, Domain-Driven Design for certain microservices) plus other simpler architectural styles, like monolithic apps that can also live as Docker containers.
+You can find the related reference **Guide/eBook** focusing on **architecting and developing containerized and microservice-based .NET Applications** (download link available below) which explains in detail how to develop this kind of architectural style (microservices, Docker containers, Domain-Driven Design for certain microservices) plus other simpler architectural styles, like monolithic apps that can also live as Docker containers.
 
 There are also additional eBooks focusing on Containers/Docker lifecycle (DevOps, CI/CD, etc.) with Microsoft Tools, already published plus an additional eBook focusing on Enterprise Apps Patterns with Xamarin.Forms.
 You can download them and start reviewing these Guides/eBooks here:
@@ -107,7 +107,7 @@ You can download them and start reviewing these Guides/eBooks here:
 For more free e-Books check out [.NET Architecture center](https://dot.net/architecture). If you have an e-book feedback, let us know by creating a new issue here: <https://github.com/dotnet-architecture/ebooks/issues>
 
 ## Are you new to **microservices** and **cloud-native development**? 
-Take a look at the free course [Create and deploy a cloud-native ASP.NET Core microservice](https://docs.microsoft.com/en-us/learn/modules/microservices-aspnet-core/) on MS Learn.  This module explains microservices concepts, cloud-native technologies, and reduce the friction in getting started with `eShopOnContainers`.
+Take a look at the free course [Create and deploy a cloud-native ASP.NET Core microservice](https://docs.microsoft.com/en-us/learn/modules/microservices-aspnet-core/) on MS Learn.  This module explains microservices concepts, cloud-native technologies, and reduces the friction in getting started with `eShopOnContainers`.
 
 ## Read further