fix: correct v1 formula name

aslilac · web-flow · commit 5a2f422f5655 · 2023-09-05T17:46:10.000-06:00
diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@ brew install coder/coder/coder
 #### Install Coder v1 (legacy)
 
 ```sh
-brew install coder/coder/coder@v1
+brew install coder/coder/coder@1
 ```
 
 [coder]: https://github.com/coder/coder
