diff --git a/rtgmpy/www/main.py b/rtgmpy/www/main.py
index 9591be10c9cfde7c242c861e90a7199c8d8ed856..2ecf9f73c38f32d13f858c4c6f3fcd0aaa0b98df 100644
--- a/rtgmpy/www/main.py
+++ b/rtgmpy/www/main.py
@@ -23,7 +23,13 @@ BASE_HREF = re.sub("\\/$", "", base_href)
 
 description = """
 Obtain risk-targeted ground motion (RTGM) values for one or more input IM hazard curves,
-in accordance with ASCE 7 (Section 21.2.1.2) and the upcoming AASHTO 2023 provisions.
+in accordance with ASCE 7 (Section 21.2.1.2) and the 2023 AASHTO Guide Specifications
+for LRFD Seismic Bridge Design (3rd Edition).
+
+Python source code and
+[**Documentation**](https://code.usgs.gov/ghsc/erp/erp-rtgm-calculator/-/tree/main/documentation)
+can be found at <https://code.usgs.gov/ghsc/erp/erp-rtgm-calculator>
+(<https://doi.org/10.5066/P9A2F2B8>).
 """
 
 app = FastAPI(