Fix export command syntax for warehouse variable (#25485)

Author: ronaldbradford

src/content/docs/r2-sql/tutorials/end-to-end-pipeline.mdx

@@ -139,11 +139,11 @@ When you run this command, take note of the "Warehouse" and "Catalog URI". You w
 </Tabs>
 
 :::note
-Copy the `warehouse` (ACCOUNTID_BUCKETNAME) and paste it in the `export` below. We will use it later in the tutorial.
+Copy the `warehouse` (ACCOUNTID_BUCKETNAME) and paste it in the `export` below. We will use it later in the tutorial. 
 :::
 
 ```bash
-export $WAREHOUSE= #Paste your warehouse here
+export WAREHOUSE= #Paste your warehouse here
 ```
 
 ### (Optional) Enable compaction on your R2 Data Catalog