[doc] Core is now C++ (#35676)

Fixes #33914

Closes #35676

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35676 from yashykt:CoreNowCpp 346d2e4ed6
PiperOrigin-RevId: 601817301

README.md

@@ -26,20 +26,21 @@ runtime comes as a package available in a user's language package manager.
 For instructions on how to use the language-specific gRPC runtime for a project,
 please refer to these documents
 
-- [C++](src/cpp): follow the instructions under the `src/cpp` directory
-- [C#/.NET](https://github.com/grpc/grpc-dotnet): NuGet packages `Grpc.Net.Client`, `Grpc.AspNetCore.Server`
-- [Dart](https://github.com/grpc/grpc-dart): pub package `grpc`
-- [Go](https://github.com/grpc/grpc-go): `go get google.golang.org/grpc`
-- [Java](https://github.com/grpc/grpc-java): Use JARs from Maven Central
-  Repository
-- [Kotlin](https://github.com/grpc/grpc-kotlin): Use JARs from Maven Central
-  Repository
-- [Node](https://github.com/grpc/grpc-node): `npm install @grpc/grpc-js`
-- [Objective-C](src/objective-c): Add `gRPC-ProtoRPC` dependency to podspec
-- [PHP](src/php): `pecl install grpc`
-- [Python](src/python/grpcio): `pip install grpcio`
-- [Ruby](src/ruby): `gem install grpc`
-- [WebJS](https://github.com/grpc/grpc-web): follow the grpc-web instructions
+-   [C++](src/cpp): follow the instructions under the `src/cpp` directory
+-   [C#/.NET](https://github.com/grpc/grpc-dotnet): NuGet packages
+    `Grpc.Net.Client`, `Grpc.AspNetCore.Server`
+-   [Dart](https://github.com/grpc/grpc-dart): pub package `grpc`
+-   [Go](https://github.com/grpc/grpc-go): `go get google.golang.org/grpc`
+-   [Java](https://github.com/grpc/grpc-java): Use JARs from Maven Central
+    Repository
+-   [Kotlin](https://github.com/grpc/grpc-kotlin): Use JARs from Maven Central
+    Repository
+-   [Node](https://github.com/grpc/grpc-node): `npm install @grpc/grpc-js`
+-   [Objective-C](src/objective-c): Add `gRPC-ProtoRPC` dependency to podspec
+-   [PHP](src/php): `pecl install grpc`
+-   [Python](src/python/grpcio): `pip install grpcio`
+-   [Ruby](src/ruby): `gem install grpc`
+-   [WebJS](https://github.com/grpc/grpc-web): follow the grpc-web instructions
 
 Per-language quickstart guides and tutorials can be found in the
 [documentation section on the grpc.io website](https://grpc.io/docs/). Code
@@ -66,8 +67,7 @@ gRPC.
 
 ## Performance
 
-See the
-[Performance dashboard](https://grafana-dot-grpc-testing.appspot.com/)
+See the [Performance dashboard](https://grafana-dot-grpc-testing.appspot.com/)
 for performance numbers of master branch daily builds.
 
 ## Concepts
@@ -77,28 +77,28 @@ See [gRPC Concepts](CONCEPTS.md)
 ## About This Repository
 
 This repository contains source code for gRPC libraries implemented in multiple
-languages written on top of a shared C core library [src/core](src/core).
+languages written on top of a shared C++ core library [src/core](src/core).
 
 Libraries in different languages may be in various states of development. We are
 seeking contributions for all of these libraries:
 
-| Language                | Source                             |
-| ----------------------- | ---------------------------------- |
-| Shared C [core library] | [src/core](src/core)               |
-| C++                     | [src/cpp](src/cpp)                 |
-| Ruby                    | [src/ruby](src/ruby)               |
-| Python                  | [src/python](src/python)           |
-| PHP                     | [src/php](src/php)                 |
-| C# (core library based) | [src/csharp](src/csharp)           |
-| Objective-C             | [src/objective-c](src/objective-c) |
-
-| Language             | Source repo                                        |
-| -------------------- | -------------------------------------------------- |
-| Java                 | [grpc-java](https://github.com/grpc/grpc-java)     |
-| Kotlin               | [grpc-kotlin](https://github.com/grpc/grpc-kotlin) |
-| Go                   | [grpc-go](https://github.com/grpc/grpc-go)         |
-| NodeJS               | [grpc-node](https://github.com/grpc/grpc-node)     |
-| WebJS                | [grpc-web](https://github.com/grpc/grpc-web)       |
-| Dart                 | [grpc-dart](https://github.com/grpc/grpc-dart)     |
-| .NET (pure C# impl.) | [grpc-dotnet](https://github.com/grpc/grpc-dotnet) |
-| Swift                | [grpc-swift](https://github.com/grpc/grpc-swift) |
+Language                  | Source
+------------------------- | ----------------------------------
+Shared C++ [core library] | [src/core](src/core)
+C++                       | [src/cpp](src/cpp)
+Ruby                      | [src/ruby](src/ruby)
+Python                    | [src/python](src/python)
+PHP                       | [src/php](src/php)
+C# (core library based)   | [src/csharp](src/csharp)
+Objective-C               | [src/objective-c](src/objective-c)
+
+Language             | Source repo
+-------------------- | --------------------------------------------------
+Java                 | [grpc-java](https://github.com/grpc/grpc-java)
+Kotlin               | [grpc-kotlin](https://github.com/grpc/grpc-kotlin)
+Go                   | [grpc-go](https://github.com/grpc/grpc-go)
+NodeJS               | [grpc-node](https://github.com/grpc/grpc-node)
+WebJS                | [grpc-web](https://github.com/grpc/grpc-web)
+Dart                 | [grpc-dart](https://github.com/grpc/grpc-dart)
+.NET (pure C# impl.) | [grpc-dotnet](https://github.com/grpc/grpc-dotnet)
+Swift                | [grpc-swift](https://github.com/grpc/grpc-swift)