Spaces for the code blocks that are not converted in GitHub pages correctly

Author: Ferie

Diff for: Generals/generals.md

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     - [Always test projects cross-browser and (possibly) cross-devices when developing](#always-test-projects-cross-browser-and-possibly-cross-devices-when-developing)
     - [Use comments when needed](#Use-comments-when-needed)
 
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 # GENERAL BEST PRACTICES
 
 ### ALWAYS TEST PROJECTS CROSS-BROWSER AND (POSSIBLY) CROSS-DEVICES WHEN DEVELOPING
 
 Cross-browser issues are a major problem for front-end developers, especially due to *Internet Explorer* and *Safari*. It is a good practice to test our code against all the browsers supported once the development is finished and (possibly) test it with different devices. In this last case, the Chrome browser is helpful in testing different mobile renderings and engines.
 
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 ### USE COMMENTS WHEN NEEDED
 
 Some parts of a project will never be easy to scan and understand. Consider a complicated regular expression, or a math function calculating angles or switching between degrees and radians. Without the comment above, beginner and intermediate readers will be fairly clueless to the scripts' meaning.