fix spelling mistake in proto3-gen.md

proto3-gen.md

 # Protobuf Schema Generation
 
-[OpenAPI Generator](https://openapi-generator.tech) is used to generate protobuf schema (`.proto3`) files from OpenAPI specifications of MEC013 Locatio API.
+[OpenAPI Generator](https://openapi-generator.tech) is used to generate protobuf schema (`.proto3`) files from OpenAPI specifications of MEC013 Location API.
 
->**NOTE:** At the time of writing, the tool does not support OAS 3.1 version and we have to first convert the [Locatio API](./LocationAPI.yaml) to OAS 3.0 for generating protobuf schema.
+>**NOTE:** At the time of writing, the tool does not support OAS 3.1 version and we have to first convert the [Location API](./LocationAPI.yaml) to OAS 3.0 for generating protobuf schema.
 
-1. Convert OAS for [Locatio API](./LocationAPI.yaml) from 3.1 to 3.0​
+1. Convert OAS for [Location API](./LocationAPI.yaml) from 3.1 to 3.0​
 
    - Change the value of `openapi` field from 3.1.0 to 3.0.0​