Fix typos in spaces

Fix typo to fit the context

Fix typo add space

Fix small typo

Fix small typo

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Update tail.md

Fix typo

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Fix typo

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Fix typo

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Fix typo

Fix typo

snippets/select.md

@@ -1,8 +1,8 @@
 ### select
 
-Retrieve a property that indicated by the selector from object.
+Retrieve a property that indicated by the selector from an object.
 
-If property not exists returns `undefined`.
+If the property does not exists returns `undefined`.
 
 ```js
 const select = (from, selector) =>