add STRchive paper to README and citation file (#176)

## Description

Adding the paper to the README and CITATION.cff

## Checklist

- [x] All changes are well summarized
- [x] Check all tests pass
- [x] Check that the website preview looks good
~~- [ ] Update the STRchive version in `CITATION.cff`, format X.Y.Z. If
any major changes, increment Y. If only minor changes, increment Z. If
the breaking change (rare), increment X.~~
- [x] Ask someone to review this PR

Author: hdashnow

CITATION.cff

@@ -7,3 +7,34 @@ authors:
     given-names: Harriet
     orcid: https://orcid.org/0000-0001-8433-6270
 cff-version: 1.2.0
+message: "If you use this software, please cite the paper below."
+preferred-citation:
+  type: article
+  authors:
+    - family-names: Hiatt
+      given-names: Laurel
+    - family-names: Weisburd
+      given-names: Ben
+    - family-names: Dolzhenko
+      given-names: Egor
+    - family-names: Rubinetti
+      given-names: Vincent
+    - family-names: Avvaru
+      given-names: Akshay K.
+    - family-names: VanNoy
+      given-names: Grace E.
+    - family-names: Kurtas
+      given-names: Nehir Edibe
+    - family-names: Rehm
+      given-names: Heidi L.
+    - family-names: Quinlan
+      given-names: Aaron R.
+    - family-names: Dashnow
+      given-names: Harriet
+  doi: 10.1186/s13073-025-01454-4
+  journal: "Genome Medicine"
+  month: 3
+  title: "STRchive: a dynamic resource detailing population-level and locus-specific insights at tandem repeat disease loci"
+  issue: 1
+  volume: 17
+  year: 2025

README.md

@@ -4,6 +4,9 @@ Short Tandem Repeats (STRs) are a type of genetic variation that are associated
 
 [⭐️ View the data at strchive.org ⭐️](http://strchive.org/)
 
+If you use STRchive in your research, please cite:
+Hiatt, L., Weisburd, B., Dolzhenko, E., Rubinetti, V., Avvaru, A.K., VanNoy, G.E., Kurtas, N.E., Rehm, H.L., Quinlan, A. and Dashnow, H.✉, 2025. STRchive: a dynamic resource detailing population-level and locus-specific insights at tandem repeat disease loci. Genome medicine doi: [https://doi.org/10.1101/2024.05.21.24307682].
+
 <p xmlns:cc="http://creativecommons.org/ns#" xmlns:dct="http://purl.org/dc/terms/"><a property="dct:title" rel="cc:attributionURL" href="http://strchive.org/">STRchive</a> by <a rel="cc:attributionURL dct:creator" property="cc:attributionName" href="https://github.com/hdashnow">Harriet Dashnow</a> is licensed under <a href="http://creativecommons.org/licenses/by/4.0/?ref=chooser-v1" target="_blank" rel="license noopener noreferrer" style="display:inline-block;">CC BY 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg?ref=chooser-v1"><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg?ref=chooser-v1"></a></p>
 
 ## Contributors