Character and typo fixes

tutorials/platform/android/android_in_app_purchases.rst

@@ -94,7 +94,7 @@ Query available items
 *********************
 
 Once the API has connected, query SKUs using ``querySkuDetails()``. You must successfully complete
-a SKU query before before calling the ``purchase()`` or ``queryPurchases()`` functions,
+a SKU query before calling the ``purchase()`` or ``queryPurchases()`` functions,
 or they will return an error. ``querySkuDetails()`` takes two parameters: an array
 of SKU name strings, and a string specifying the type of SKU being queried.
 The SKU type string should be ``"inapp"`` for normal in-app purchases or ``"subs"`` for subscriptions.

tutorials/platform/ios/plugins_for_ios.rst

@@ -184,7 +184,7 @@ The response event will be a dictionary with the following fields:
       "invalid_ids": [ list of requested IDs that were invalid ],
       "ids": [ list of IDs that were valid ],
       "titles": [ list of valid product titles (corresponds with list of valid IDs) ],
-      "descriptions": [ list of valid product descriptions ] ,
+      "descriptions": [ list of valid product descriptions ],
       "prices": [ list of valid product prices ],
       "localized_prices": [ list of valid product localized prices ],
     }

tutorials/platform/web/customizing_html5_shell.rst

@@ -101,7 +101,7 @@ optionally overriding any :js:attr:`EngineConfig` parameters.
     });
 
 This snippet of code automatically loads and initializes the engine before starting the game.
-It uses the given configuration to to load the engine. The :js:meth:`engine.startGame <Engine.prototype.startGame>`
+It uses the given configuration to load the engine. The :js:meth:`engine.startGame <Engine.prototype.startGame>`
 method is asynchronous and returns a ``Promise``. This allows your control code to track if
 the game was loaded correctly without blocking execution or relying on polling.