Linkify the installation instructions.

Previously, the complete URL wasn't being turned into a clickable
link by this blog's markdown parser.

Also give the link a more descriptive name, so hopefully it's easier
to find/remember in the future.

_posts/blog/2016-08-21-gopherjs-1.7-1-release.markdown

@@ -13,7 +13,7 @@ The support for Go 1.7 means that GopherJS 1.7-1 requires Go 1.7 and no longer w
 
 GopherJS 1.7-1 continues to support nearly everything of the [Go language specification](https://golang.org/ref/spec), including goroutines. Please consult the [package compatibility table](https://github.com/gopherjs/gopherjs/blob/master/doc/packages.md) to see which standard library packages are supported. Everything from the previous Go 1.6 version is still supported, as are many additions to Go 1.7, but there are some exceptions. For example, the new [`reflect.StructOf` function](https://godoc.org/reflect#StructOf) is not yet supported, but [issue #499](https://github.com/gopherjs/gopherjs/issues/499) tracks its implementation status. If you run into any bugs or discrepancies with what the compatibility table says, please [file an issue](https://github.com/gopherjs/gopherjs/issues).
 
-Installation or upgrade instructions remain the same, even though GopherJS has a version number now. To get the latest official stable release, please follow the instructions at https://github.com/gopherjs/gopherjs#installation-and-usage. You can confirm that you have the right version if `gopherjs version` prints `GopherJS 1.7-1`.
+Installation or upgrade instructions remain the same, even though GopherJS has a version number now. To get the latest official stable release, please follow the [instructions in the README](https://github.com/gopherjs/gopherjs#installation-and-usage). You can confirm that you have the right version if `gopherjs version` prints `GopherJS 1.7-1`.
 
 Over the last few years, GopherJS has become increasingly complete and stable. Many advanced features of the Go language specification were implemented (such as goroutines, channels, and select statements). More and more of the viable standard library packages had all their tests pass and became officially supported. Many bugs were reported, investigated, and fixed. Today, it is used by many people for a broad range of projects.