install.html: elaborate on shell profile instructions
R=r, rsc
CC=golang-dev
https://golang.org/cl/556041
diff --git a/doc/install.html b/doc/install.html
index 87d4836..20f8dcc 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -19,9 +19,9 @@
<h2>Environment variables</h2>
-<p>The Go compilation environment depends on three environment
-variables that you should set in your <code>.bashrc</code> or equivalent,
-plus one optional variable:</p>
+<p>
+The Go compilation environment depends on three environment variables plus one optional variable:
+</p>
<dl>
<dt>
@@ -106,7 +106,9 @@
</p>
<p>
-Set these variables in your <code>.bashrc</code>. For example:
+Set these variables in your shell profile (<code>$HOME/.bashrc</code>,
+<code>$HOME/.profile</code>, or equivalent). The settings might look
+something like this:
</p>
<pre>
@@ -116,7 +118,8 @@
</pre>
<p>
-Double-check them by listing your environment.
+Double-check them by listing your environment. (You will need to launch
+a new shell or terminal window for the changes to take effect.)
</p>
<pre>
