Update namespace

README.md

@@ -7,6 +7,22 @@ Built using [svgo](https://github.com/svg/svgo)
 
 Originally designed for my contact page - https://edent.tel/
 
+## How Small?
+
+## Can you go smaller?
+
+Yes!
+
+Each of these has an `xmlns="http://www.w3.org/2000/svg"` in the `<svg>` tag. This isn't strictly necessary - but some web browsers won't display them as an image without it.
+
+Newlines can be stripped - they've been kept for readability where possible.
+
+Rounded corners can be dropped - `rx="15%" ry="15%"` - the effect can be done in CSV if you want.
+
+The precision of the paths is *mostly* 0 decimal places. A few logos have 1 or 2 dp to make them look more accurate. The precision can be dropped if necessary.
+
+More? Tell me by raising an issue!
+
 ## Licenses
 
 The majority of these vector logos are based on someone else's work.