Modify Pseudopotential description in docs

[codecov-commenter]

Codecov Report

Base: 83.18% // Head: 83.15% // Decreases project coverage by -0.03% :warning:

Coverage data is based on head (49bc988) compared to base (32ee49e). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #180 +/- ## ========================================== - Coverage 83.18% 83.15% -0.04% ========================================== Files 66 66 Lines 5568 5573 +5 ========================================== + Hits 4632 4634 +2 - Misses 936 939 +3 ``` | [Impacted Files](https://codecov.io/gh/epfl-theos/koopmans/pull/180?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [koopmans/workflows/\_singlepoint.py](https://codecov.io/gh/epfl-theos/koopmans/pull/180/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-a29vcG1hbnMvd29ya2Zsb3dzL19zaW5nbGVwb2ludC5weQ==) | `78.87% <0.00%> (-2.29%)` | :arrow_down: | | [koopmans/workflows/\_koopmans\_dfpt.py](https://codecov.io/gh/epfl-theos/koopmans/pull/180/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-a29vcG1hbnMvd29ya2Zsb3dzL19rb29wbWFuc19kZnB0LnB5) | `84.97% <0.00%> (-0.58%)` | :arrow_down: | | [koopmans/workflows/\_wannierize.py](https://codecov.io/gh/epfl-theos/koopmans/pull/180/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-a29vcG1hbnMvd29ya2Zsb3dzL193YW5uaWVyaXplLnB5) | `72.50% <0.00%> (-0.22%)` | :arrow_down: | | [koopmans/workflows/\_workflow.py](https://codecov.io/gh/epfl-theos/koopmans/pull/180/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-a29vcG1hbnMvd29ya2Zsb3dzL193b3JrZmxvdy5weQ==) | `87.10% <0.00%> (+0.06%)` | :arrow_up: | | [koopmans/workflows/\_folding.py](https://codecov.io/gh/epfl-theos/koopmans/pull/180/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-a29vcG1hbnMvd29ya2Zsb3dzL19mb2xkaW5nLnB5) | `53.33% <0.00%> (+1.06%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None)

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