docs: fix typo in semantic-conventions.mdx (#98)

Author: MaxHam

openllmetry/contributing/semantic-conventions.mdx

@@ -63,8 +63,8 @@ This is a work in progress, and we welcome your feedback and contributions!
 - `pinecone.query.id`
 - `pinecone.query.namespace`
 - `pinecone.query.top_k`
-- `pinecone.usage.read_units` - The number of read units used (as reported by Piinecone)
-- `pinecone.usage.write_units` - The number of write units used (as reported by Piinecone)
+- `pinecone.usage.read_units` - The number of read units used (as reported by Pinecone)
+- `pinecone.usage.write_units` - The number of write units used (as reported by Pinecone)
 
 ### LLM Frameworks