note ignored trailing slashes and query parameters

readme.md

@@ -36,12 +36,14 @@ there is no database, just a text file.
 
 a working [dockerfile](./Dockerfile) and [compose file](./compose.yaml) are provided.
 
-## a note on case insensitivity
+## notes
+
+### case insensitivity
 
 all shortlinks are case insenitive,
-due to the lack of [urlencoding/decoding](#a-note-on-urlencoded-characters).
+due to the lack of [urlencoding/decoding](#urlencoded-characters).
 
-## a note on urlencoded characters
+### urlencoded characters
 
 this program does not decode urlencoded strings before checking if strings match.
 this is a deliberate choice to keep things as simple as possible.
@@ -57,6 +59,14 @@ for example, for the link <http://pls.cx/🤬> the following line is in my urls.
 /%f0%9f%a4%ac https://en.wikipedia.org/wiki/Controversies_of_Nestl%C3%A9
 ```
 
+### trailing slashes are ignored
+
+trailing slashes are ignored. 
+
+### query parameters are ignored
+
+anything after a question mark character (`?`) are ignored.
+
 ## why?
 
 all url shorteners i've come across are too complicated: