initial combined header parser

Author: nfriedly

.gitignore

@@ -0,0 +1,15 @@
+# /.gitignore
+# Tells Git to ignore these files
+
+node_modules/
+dist/
+coverage/
+test/external/**/package-lock.json
+
+.vscode/
+.idea/
+
+*.log
+*.tmp
+*.bak
+*.tgz

README.md

@@ -1,2 +1,6 @@
 # ratelimit-header-parser
-Parse RateLimit headers of various forms into a normalized format
+
+Parse RateLimit headers of various forms, including the combined form from 
+[draft 7](https://datatracker.ietf.org/doc/html/draft-ietf-httpapi-ratelimit-headers-07) of the 
+[IETF Rate Limit Headers standard](https://github.com/ietf-wg-httpapi/ratelimit-headers), 
+into a normalized format.