📝 Fix minor typos (#12516)

fastapi/param_functions.py

@@ -2298,7 +2298,7 @@ def Security(  # noqa: N802
             dependency.
 
             The term "scope" comes from the OAuth2 specification, it seems to be
-            intentionaly vague and interpretable. It normally refers to permissions,
+            intentionally vague and interpretable. It normally refers to permissions,
             in cases to roles.
 
             These scopes are integrated with OpenAPI (and the API docs at `/docs`).

fastapi/security/oauth2.py

@@ -52,7 +52,7 @@ class OAuth2PasswordRequestForm:
     ```
 
     Note that for OAuth2 the scope `items:read` is a single scope in an opaque string.
-    You could have custom internal logic to separate it by colon caracters (`:`) or
+    You could have custom internal logic to separate it by colon characters (`:`) or
     similar, and get the two parts `items` and `read`. Many applications do that to
     group and organize permissions, you could do it as well in your application, just
     know that that it is application specific, it's not part of the specification.
@@ -194,7 +194,7 @@ class OAuth2PasswordRequestFormStrict(OAuth2PasswordRequestForm):
     ```
 
     Note that for OAuth2 the scope `items:read` is a single scope in an opaque string.
-    You could have custom internal logic to separate it by colon caracters (`:`) or
+    You could have custom internal logic to separate it by colon characters (`:`) or
     similar, and get the two parts `items` and `read`. Many applications do that to
     group and organize permissions, you could do it as well in your application, just
     know that that it is application specific, it's not part of the specification.