Update _posts/2021-09-26-newsletter.md

Co-authored-by: Gregory Anders <[email protected]>

Author: justinmk

_posts/2021-09-26-newsletter.md

@@ -26,7 +26,7 @@ interface design, to delivery was a matter of weeks, thanks to @gpanders.
 
 The `vim.diagnostic` API is available in Nvim master (unreleased 0.6) and we are considering it for 0.5.2 stable release.
 
-Thoug the Nvim RPC API is bound by a sacred
+Though the Nvim RPC API is bound by a sacred
 [contract](https://neovim.io/doc/user/api.html#api-contract), in other areas of Nvim we are now more
 aggressively deprecating and reworking interfaces.  We are fundamentally committed to backwards compatibility for the RPC API and will eventually adopt that commitment in the Lua interface.  Meanwhile, we reserve the option of breaking things in Lua-land. Such breakage is collected and announced in the [Following HEAD](https://github.com/neovim/neovim/issues/14090) thread.