fix a few trailing mains

Author: mgravell

docs/gettingstarted.md

@@ -153,10 +153,10 @@ introduction of `.google.protobuf.Timestamp`). It is recommended to use `DataFor
 
 1. Create an ASP.NET Core Web Application targeting `netcoreapp3.0`, and add a package references to [`protobuf-net.Grpc.AspNetCore`](https://www.nuget.org/packages/protobuf-net.Grpc.AspNetCore)
 (and a project/package reference to your data/service contracts if necessary). Note that the gRPC tooling can run alongside other services/sites that your ASP.NET application is providing.
-2. in `CreateHostBuilder`, make sure you are using `WebHost`, and enable listening on `HttpProtocols.Http2`; see [`Program.cs`](https://github.com/protobuf-net/protobuf-net.Grpc/blob/master/examples/pb-net-grpc/Server_CS/Program.cs)
-3. in `ConfigureServices`, call `services.AddCodeFirstGrpc()`; see [`Startup.cs`](https://github.com/protobuf-net/protobuf-net.Grpc/blob/master/examples/pb-net-grpc/Server_CS/Startup.cs)
+2. in `CreateHostBuilder`, make sure you are using `WebHost`, and enable listening on `HttpProtocols.Http2`; see [`Program.cs`](https://github.com/protobuf-net/protobuf-net.Grpc/blob/main/examples/pb-net-grpc/Server_CS/Program.cs)
+3. in `ConfigureServices`, call `services.AddCodeFirstGrpc()`; see [`Startup.cs`](https://github.com/protobuf-net/protobuf-net.Grpc/blob/main/examples/pb-net-grpc/Server_CS/Startup.cs)
 4. define a class that implements your service contract, i.e. `class MyTimeService : ITimeService`
-5. in `Configure`, call `endpoints.MapGrpcService<TService>()` for each of your services; see [`Startup.cs`](https://github.com/protobuf-net/protobuf-net.Grpc/blob/master/examples/pb-net-grpc/Server_CS/Startup.cs)
+5. in `Configure`, call `endpoints.MapGrpcService<TService>()` for each of your services; see [`Startup.cs`](https://github.com/protobuf-net/protobuf-net.Grpc/blob/main/examples/pb-net-grpc/Server_CS/Startup.cs)
 
 So what might our services look like? Let's start with our simple calculator; that might be synchronous at the server, which is why `ValueTask<T>` can be useful; consider:
 

readme.md

@@ -1,6 +1,6 @@
 # protobuf-net.Grpc
 
-[![Build status](https://ci.appveyor.com/api/projects/status/en9i5mp471ci6ip3/branch/master?svg=true)](https://ci.appveyor.com/project/StackExchange/protobuf-net-grpc/branch/master)
+[![Build status](https://ci.appveyor.com/api/projects/status/en9i5mp471ci6ip3/branch/main?svg=true)](https://ci.appveyor.com/project/StackExchange/protobuf-net-grpc/branch/main)
 
 `protobuf-net.Grpc` adds code-first support for services over gRPC using either the native `Grpc.Core` API, or the fully-managed `Grpc.Net.Client` / `Grpc.AspNetCore.Server` API.
 
@@ -54,7 +54,7 @@ Everything is available as pre-built packages on nuget; in particular, you proba
 - [`protobuf-net.Grpc.Native`](https://www.nuget.org/packages/protobuf-net.Grpc.Native) for clients or servers using the native/unmanaged API
 - [`protobuf-net.Grpc`](https://www.nuget.org/packages/protobuf-net.Grpc) and [`Grpc.Net.Client`](https://www.nuget.org/packages/Grpc.Net.Client/) for clients using `HttpClient` on .NET Core 3
 
-[Usage examples are available in C#, VB and F#](https://github.com/protobuf-net/protobuf-net.Grpc/tree/master/examples/pb-net-grpc).
+[Usage examples are available in C#, VB and F#](https://github.com/protobuf-net/protobuf-net.Grpc/tree/main/examples/pb-net-grpc).
 
 ## Anything else?
 

version.json

@@ -6,7 +6,7 @@
     "semVer": 2
   },
   "publicReleaseRefSpec": [
-    "^refs/heads/master$",
+    "^refs/heads/main$",
     "^refs/tags/v\\d+\\.\\d+"
   ]
 }