Changed "the the endpoint" to "to the endpoint"

Line 14 -> I think it should be "call made to the endpoint" instead of "call made the the endpoint"

apps/file-q-and-a/README.md

@@ -11,7 +11,7 @@ To run either version of the app, please follow the instructions in the respecti
 
 ## How it works
 
-When a file is uploaded, text is extracted from the file. This text is then split into shorter text chunks, and an embedding is created for each text chunk. When the user asks a question, an embedding is created for the question, and a similarity search is performed to find the file chunk embeddings that are most similar to the question (i.e. have highest cosine similarities with the question embedding). An API call is then made the the completions endpoint, with the question and the most relevant file chunks are included in the prompt. The generative model then gives the answer to the question found in the file chunks, if the answer can be found in the extracts.
+When a file is uploaded, text is extracted from the file. This text is then split into shorter text chunks, and an embedding is created for each text chunk. When the user asks a question, an embedding is created for the question, and a similarity search is performed to find the file chunk embeddings that are most similar to the question (i.e. have highest cosine similarities with the question embedding). An API call is then made to the completions endpoint, with the question and the most relevant file chunks are included in the prompt. The generative model then gives the answer to the question found in the file chunks, if the answer can be found in the extracts.
 
 ## Limitations