fix typos (#73)

* fix typo

* typo indenttion => indentation

source/codingstandards.rst

@@ -319,7 +319,7 @@ This tag usage is not forbidden, but make sure to use it properly, or just avoid
          [...]
       }
 
-Something we can see quite often is just the usage of the ``@see`` tag to make reference to the parent method. **This is wrong**. The ``@see`` tag is designed to reference another method that would help to understand this one; not to make a reference to its parent (you can alos take a look at `PHPDocumentor documentation about it <https://www.phpdoc.org/docs/latest/references/phpdoc/tags/see.html>`_. While generating, parent class and methods are automaticaly discovered; a link to the parent will be automatically added.
+Something we can see quite often is just the usage of the ``@see`` tag to make reference to the parent method. **This is wrong**. The ``@see`` tag is designed to reference another method that would help to understand this one; not to make a reference to its parent (you can also take a look at `PHPDocumentor documentation about it <https://www.phpdoc.org/docs/latest/references/phpdoc/tags/see.html>`_. While generating, parent class and methods are automaticaly discovered; a link to the parent will be automatically added.
 An usage example:
 
 .. code-block:: php
@@ -426,7 +426,7 @@ Files
 
 * Name in lower case.
 * Maximum line length: 100 characters
-* Indenttion: 3 spaces
+* Indentation: 3 spaces
 
 Database queries
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