add readme

README.md

@@ -0,0 +1,23 @@
+# ubuntu geoip mirror selector
+
+Add to `Dockerfile`:
+
+```
+RUN apt-get update && apt-get install -y curl
+RUN curl -fsSL https://git.eeqj.de/sneak/ubuntulocal/raw/branch/main/updatemirror.sh | bash
+```
+
+Alternately, paste in:
+
+```
+apt-get update && apt-get install -y curl jq
+curl -fsSL https://git.eeqj.de/sneak/ubuntulocal/raw/branch/main/updatemirror.sh | bash
+```
+
+# License
+
+WTFPL
+
+# Author
+
+sneak `[sneak@sneak.berlin](mailto:sneak@sneak.berlin)`