docs: clean up whitespace and fix typo in tutorial.md (#8695)

* docs: remove trailing whitespace

* docs: fix typo in tutorial.md

grpc/examples/README.md

@@ -32,4 +32,4 @@ def say_hello(stub, builder):
 
 - Always requires the `content-type` of the payload to be set to `application/grpc+flatbuffers`
 
-example: `.SayHello(ctx, b, grpc.CallContentSubtype("flatbuffers"))`
+example: `.SayHello(ctx, b, grpc.CallContentSubtype("flatbuffers"))`

grpc/examples/go/greeter/README.md

@@ -22,4 +22,4 @@
 
 - `go clean`
 
-- `go run main.go --name NAME`
+- `go run main.go --name NAME`

grpc/examples/python/greeter/README.md

@@ -9,4 +9,4 @@
 
 ## How to run Client:
 
-- `python client.py ${PORT} ${NAME}`
+- `python client.py ${PORT} ${NAME}`

grpc/examples/ts/greeter/README.md

@@ -10,4 +10,4 @@ you would need to run `npm run build` or simply use `npm install && tsc`
 
 ## How to run Client:
 
-- `npm run client 3000`
+- `npm run client 3000`