Pmidcite

ADDED:
* What is pmid2cite doing with your data and who are they?
* More comments regarding Google Scholar
* Improve link format in README.md
* Clearly say NIH is the National Institutes of Health

CHANGED:
* Improved error message from API

$ gitlog --since 2022-10
RAN: git log --after "2022-10" --pretty=format:"%Cred%H %h %an %cd%Creset %s" --name-status

All STARTING ON: 2022_01_16 Sun - 6 commits, 4 files
Sun 2022-01-16 18:57:25 4cbb911 A like -> such as
Mon 2022-01-17 06:56:50 f1e7ead B Cite/ref arrows right-to-left
Mon 2022-01-17 07:12:29 c7563cc C rm comment
Mon 2022-01-17 07:15:19 62943b0 D Group 4 (top group) color like in gaussian curve plot
Mon 2022-01-17 07:26:37 8b496ef E Add contact
Mon 2022-01-17 07:28:23 7b39acb F Format
A...EF M README.md
.B.D.. M docs/images/pmidcite_summary.png
..C... M src/bin/plt_guassian_nihperc.py
...D.. M doc/images/nih_perc_groups.png
6 commits since 2022_01_16 shown

* Add summary image to README/index.md

* Minor cleanup text format in README/index.md

* Add link to paper in journal, Research Synthesis Methods

* Add link to journal, Research Synthesis Methods in README.md and docs/index.md