Fix new line inside emphasis

[aliana17]

Fixed ## # 151

• Added a code that will move trailing line breaks outside of the asterisks and underscores.
• Also changed a variable name list used inside a for loop to item as list is a python data type and it cannot be used as a variable name.

[codecov[bot]]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (099c4b8) 97.23% compared to head (b48cf24) 96.86%.

Files	Patch %	Lines
html2text/__init__.py	79.16%	5 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #368 +/- ## ========================================== - Coverage 97.23% 96.86% -0.38% ========================================== Files 11 12 +1 Lines 1122 1149 +27 ========================================== + Hits 1091 1113 +22 - Misses 31 36 +5 ``` | [Flag](https://app.codecov.io/gh/Alir3z4/html2text/pull/368/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand) | Coverage Δ | | |---|---|---| | [unittests-3.10](https://app.codecov.io/gh/Alir3z4/html2text/pull/368/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand) | `96.86% <83.33%> (-0.38%)` | :arrow_down: | | [unittests-3.11](https://app.codecov.io/gh/Alir3z4/html2text/pull/368/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand) | `96.86% <83.33%> (-0.38%)` | :arrow_down: | | [unittests-3.12](https://app.codecov.io/gh/Alir3z4/html2text/pull/368/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand) | `96.86% <83.33%> (-0.38%)` | :arrow_down: | | [unittests-3.8](https://app.codecov.io/gh/Alir3z4/html2text/pull/368/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand) | `96.86% <83.33%> (-0.38%)` | :arrow_down: | | [unittests-3.9](https://app.codecov.io/gh/Alir3z4/html2text/pull/368/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand) | `96.86% <83.33%> (-0.38%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Alireza+Savand#carryforward-flags-in-the-pull-request-comment) to find out more.

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[Alir3z4]

Could you please fix the failing CI and increase the coverage with tests?