Update README.md (openai#71)

Addresses multiple small typos and grammatical errors in the main README.md as well as some improvements in phrasing for clarity.

Author: palenciavik

README.md

@@ -33,7 +33,7 @@ Both models were trained using our [harmony response format][harmony] and should
 
 #### Transformers
 
-You can use `gpt-oss-120b` and `gpt-oss-20b` with Transformers. If you use the Transformers chat template it will automatically apply the [harmony response format][harmony]. If you use `model.generate` directly, you need to apply the harmony format manually using the chat template or use our [`openai-harmony`][harmony] package.
+You can use `gpt-oss-120b` and `gpt-oss-20b` with the Transformers library. If you use Transformers' chat template, it will automatically apply the [harmony response format][harmony]. If you use `model.generate` directly, you need to apply the harmony format manually using the chat template or use our [`openai-harmony`][harmony] package.
 
 ```python
 from transformers import pipeline
@@ -279,7 +279,7 @@ options:
 ```
 
 > [!NOTE]
-> The torch and triton implementation requires original checkpoint under `gpt-oss-120b/original/` and `gpt-oss-20b/original/` respectively. While vLLM uses the Hugging Face converted checkpoint under `gpt-oss-120b/` and `gpt-oss-20b/` root directory respectively.
+> The torch and triton implementations require original checkpoint under `gpt-oss-120b/original/` and `gpt-oss-20b/original/` respectively. While vLLM uses the Hugging Face converted checkpoint under `gpt-oss-120b/` and `gpt-oss-20b/` root directory respectively.
 
 ### Responses API