Merge branch 'master' of github.com:mu-editor/mu-editor.github.io

Author: ntoll

en/howto/install_windows.md

@@ -14,9 +14,9 @@ recommend you [read the instructions at the bottom of the page](#admins)).
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-Mu works on Window 7, 8 and 10 in 32 bit and 64 bit. Its a good idea to make sure your system to up-to-date with all Windows updates.
+Mu works on Window 7, 8 and 10 in 32 bit and 64 bit. It's a good idea to make sure your system to up-to-date with all Windows updates.
 
-If you in an educational setting you may need to get your system administrator to run the installer for you.
+If you are in an educational setting you may need to get your system administrator to run the installer for you.
 
 ## Step 1 - Download Mu Installer