fix http postgresql extension typo

fixing a typo in 2 commands

web/docs/guides/database/extensions/http.mdx

@@ -52,10 +52,10 @@ values={[
 ```sql 
 
 -- Example: enable the "http" extension 
-create extenstion http with schema extensions;
+create extension http with schema extensions;
 
 -- Example: disable the "http" extension 
-drop extenstion if exists http;
+drop extension if exists http;
 
 ```
 
@@ -115,4 +115,4 @@ from
 
 ## Resources 
 
-- Official [`http` Github Repository](https://github.com/pramsey/pgsql-http).
+- Official [`http` Github Repository](https://github.com/pramsey/pgsql-http).