docs: Fix typo in md files (#659)

Author: arjankowski

docs/usage/files.md

@@ -485,7 +485,7 @@ print('File "{0}" has been copied into folder "{1}"'.format(file_copy.name, file
 Rename a File
 -----------
 
-A file can be renamed by calling [`file.rebane(name)`][rename]. This method returns the updated
+A file can be renamed by calling [`file.rename(name)`][rename]. This method returns the updated
 [`File`][file_class] object with a new name. Remeber to provide also extention of the file along with the new name. 
 
 ```python

docs/usage/folders.md

@@ -168,7 +168,7 @@ print('Folder "{0}" has been moved into folder "{1}"'.format(moved_folder.name,
 Rename a File
 -----------
 
-A folder can be renamed by calling [`folder.rebane(name)`][rename]. This method returns the updated
+A folder can be renamed by calling [`folder.rename(name)`][rename]. This method returns the updated
 [`Folder`][folder_class] object with a new name.
 
 ```python

docs/usage/web_link.md

@@ -111,7 +111,7 @@ print('Web link "{0}" has been copied into folder "{1}"'.format(web_link_copy.na
 Rename a Web Link
 -----------
 
-A web link can be renamed by calling [`web_link.rebane(name)`][rename]. This method returns the updated
+A web link can be renamed by calling [`web_link.rename(name)`][rename]. This method returns the updated
 [`WebLink`][web_link_class] object with a new name.
 
 ```python