Fix typos in README.md (#423)

Author: piperchester

README.md

@@ -37,7 +37,7 @@ can import packages from `gnostic-models` instead of `gnostic`.
 
 [google/gnostic-grpc](https://github.com/google/gnostic-grpc) contains a
 gnostic plugin that can generate an annotated Protocol Buffer description of an
-API that, when transcode, produces an API that conforms to a specified OpenAPI
+API that, when transcoded, produces an API that conforms to a specified OpenAPI
 document. To go from protobuf to OpenAPI, see the
 [protoc-gen-openapi](cmd/protoc-gen-openapi) tool in this project.
 
@@ -69,12 +69,12 @@ and later.
         git clone https://github.com/google/gnostic
         cd gnostic
 
-2.  Verify that you have a local installation of `protoc`. You can get protoc
+2.  Verify that you have a local installation of `protoc`. You can get `protoc`
     [here](https://github.com/protocolbuffers/protobuf).
 
 3.  Build **gnostic** with `make`. This uses
     [go generate](https://blog.golang.org/generate) to build support code
-    including code generated by `protoc` and the Go protoc plugin, which is
+    including code generated by `protoc` and the Go `protoc` plugin, which is
     automatically downloaded from
     [github.com/golang/protobuf](https://github.com/golang/protobuf) by the
     [COMPILE-PROTOS.sh](COMPILE-PROTOS.sh) script. This also builds all plugins

openapiv3/README.md

@@ -7,13 +7,13 @@ Gnostic applications and plugins can use OpenAPIv3.proto to generate Protocol
 Buffer support code for their preferred languages.
 
 OpenAPIv3.go is used by Gnostic to read JSON and YAML OpenAPI descriptions into
-the Protocol Buffer-based datastructures generated from OpenAPIv3.proto.
+the Protocol Buffer-based data structures generated from OpenAPIv3.proto.
 
 OpenAPIv3.proto and OpenAPIv3.go are generated by the Gnostic compiler
-generator, and OpenAPIv3.pb.go is generated by protoc, the Protocol Buffer
-compiler, and protoc-gen-go, the Protocol Buffer Go code generation plugin.
+generator, and OpenAPIv3.pb.go is generated by `protoc`, the Protocol Buffer
+compiler, and `protoc-gen-go`, the Protocol Buffer Go code generation plugin.
 
-openapi-3.1.json is a JSON schema for OpenAPI 3.1 that is automatically
+`openapi-3.1.json` is a JSON schema for OpenAPI 3.1 that is automatically
 generated from the OpenAPI 3.1 specification. It is not an official JSON Schema
 for OpenAPI.