Update doc link text
@@ -22,7 +22,7 @@ The documentation includes a project overview and rationale, as well as the
on-chain specification. Docs should always be updated before or in tandem with
code.
-The most recent build is available at [http://docs.keep.network/tbtc/](http://docs.keep.network/tbtc/).
+Latest build from master is available at [http://docs.keep.network/tbtc/](http://docs.keep.network/tbtc/) ([pdf](http://docs.keep.network/tbtc/index.pdf)).
### Building
