Update documentation, add examples

[xadupre]

No description provided.

[lgtm-com]

This pull request introduces 1 alert and fixes 12 when merging 826cc9d into 507db05 - view on LGTM.com

new alerts:

• 1 for Unused local variable

fixed alerts:

• 5 for Unused local variable
• 2 for Unused import
• 2 for Suspicious unused loop iteration variable
• 1 for Unreachable code
• 1 for Module is imported with 'import' and 'import from'
• 1 for Variable defined multiple times

[lgtm-com]

This pull request introduces 1 alert and fixes 11 when merging d481467 into 507db05 - view on LGTM.com

new alerts:

• 1 for Unused local variable

fixed alerts:

• 5 for Unused local variable
• 2 for Suspicious unused loop iteration variable
• 1 for Unused import
• 1 for Unreachable code
• 1 for Module is imported with 'import' and 'import from'
• 1 for Variable defined multiple times

[lgtm-com]

This pull request introduces 1 alert and fixes 11 when merging 5222349 into 507db05 - view on LGTM.com

new alerts:

• 1 for Unused local variable

fixed alerts:

• 5 for Unused local variable
• 2 for Suspicious unused loop iteration variable
• 1 for Unused import
• 1 for Unreachable code
• 1 for Module is imported with 'import' and 'import from'
• 1 for Variable defined multiple times

[lgtm-com]

This pull request fixes 11 alerts when merging 0d20660 into 507db05 - view on LGTM.com

fixed alerts:

• 5 for Unused local variable
• 2 for Suspicious unused loop iteration variable
• 1 for Unused import
• 1 for Unreachable code
• 1 for Module is imported with 'import' and 'import from'
• 1 for Variable defined multiple times