minor doc fixes

runtime/integration-tests/src/generic/README.md

@@ -2,11 +2,11 @@
 
 The aim of this module is to make integration-tests independently for all runtimes at once.
 
-You can choose the environment you for your each of your use cases:
+You can choose the environment for each of your use cases:
   - `RuntimeEnv`: Simple environment that acts as a wrapper over the runtime
   - `FudgeEnv`: Advanced environment that use a client and connect the runtime to a relay chain.
 
-Both environment uses the same interface so jumping from one to the another should be something smooth.
+Both environment uses the same interface so jumping from one to the another should be something "smooth".
 
 ## Where I start?
 - Create a new file in `cases/<file.rs>` for the use case you want to test.
@@ -16,7 +16,7 @@ Both environment uses the same interface so jumping from one to the another shou
     - Adding bounds to `T::RuntimeCallExt` to support calls from your pallet.
     - Adding bounds to `T::EventExt` to support events from your pallet.
     - Adding bounds to `T::Api` to support new api calls.
-- You can add `GenerisBuild` builders for setting the initial state of your pallet for others in `utils/genesis.rs`.
+- You can add `GenesisBuild` builders for setting the initial state of your pallet for others in `utils/genesis.rs`.
   Please be as generic and simple as possible to leave others to compose its own requirement using your method,
   without hidden initializations.
 - You can add any utility that helps to initialize states for others under `utils` folder.