gluon-autoupdater: add more models to README

This adds a list of known models to the readme.

package/gluon-autoupdater/README.md

 Models
 ======
 
-tp-link-tl-wr741n/nd-v4
-tp-link-tl-wr1043n/nd-v1
+Ubiquity
+--------
+
+ubiquity-nanostation-m (dual ethernet)
+ubiquity-bullet-m (single ethernet: Bullet M, Nanostation loco M)
+
+TP-Link
+-------
+
+tp-link-tl-mr3020
+tp-link-tl-mr3040
+tp-link-tl-mr3220
+tp-link-tl-mr3420
+tp-link-tl-wdr3600-v1
+tp-link-tl-wdr4300-v1
+tp-link-tl-wdr4310-v1
+tp-link-tl-wr740n-nd-v1
+tp-link-tl-wr740n-nd-v3
+tp-link-tl-wr740n-nd-v4
+tp-link-tl-wr741n-nd-v1
+tp-link-tl-wr741n-nd-v2
+tp-link-tl-wr741n-nd-v4
+tp-link-tl-wr841n-nd-v8
+tp-link-tl-wr841n-nd-v1.5
+tp-link-tl-wr841n-nd-v3
+tp-link-tl-wr841n-nd-v5
+tp-link-tl-wr841n-nd-v7
+tp-link-tl-wr842n-nd-v1
+tp-link-tl-wr941n-nd-v2
+tp-link-tl-wr941n-nd-v3
+tp-link-tl-wr941n-nd-v4
+tp-link-tl-wr1043n-nd-v1