doc/go1.16: add notes about package-specific fs.FS changes

For #40700
For #41190

Change-Id: I964d6856d5cad62c859d0f3a7afdd349a8ad87cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/285093
Trust: Ian Lance Taylor <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

Author: ianlancetaylor

doc/go1.16.html

@@ -512,6 +512,16 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
   in mind.
 </p>
 
+<dl id="archive/zip"><dt><a href="/pkg/archive/zip/">archive/zip</a></dt>
+  <dd>
+    <p><!-- CL 243937 -->
+      The new <a href="/pkg/archive/zip/#Reader.Open"><code>Reader.Open</code></a>
+      method implements the <a href="/pkg/io/fs/#FS"><code>fs.FS</code></a>
+      interface.
+    </p>
+  </dd>
+</dl>
+
 <dl id="crypto/dsa"><dt><a href="/pkg/crypto/dsa/">crypto/dsa</a></dt>
   <dd>
     <p><!-- CL 257939 -->
@@ -675,6 +685,18 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
   </dd>
 </dl><!-- flag -->
 
+<dl id="html/template"><dt><a href="/pkg/html/template/">html/template</a></dt>
+  <dd>
+    <p><!-- CL 243938 -->
+      The new <a href="/pkg/html/template/#ParseFS"><code>template.ParseFS</code></a>
+      function and <a href="/pkg/html/template/#Template.ParseFS"><code>template.Template.ParseFS</code></a>
+      method are like <a href="/pkg/html/template/#ParseGlob"><code>template.ParseGlob</code></a>
+      and <a href="/pkg/html/template/#Template.ParseGlob"><code>template.Template.ParseGlob</code></a>,
+      but read the templates from an <a href="/pkg/io/fs/#FS"><code>fs.FS</code></a>.
+    </p>
+  </dd>
+</dl><!-- html/template -->
+
 <dl id="io"><dt><a href="/pkg/io/">io</a></dt>
   <dd>
     <p><!-- CL 261577 -->
@@ -784,6 +806,12 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
       environment variable for <code>https://</code> URLs when
       <code>HTTPS_PROXY</code> is unset.
     </p>
+
+    <p><!-- CL 243939 -->
+      The new <a href="/pkg/net/http/#FS"><code>http.FS</code></a>
+      function converts an <a href="/pkg/io/fs/#FS"><code>fs.FS</code></a>
+      to an <a href="/pkg/net/http/#Handler"><code>http.Handler</code></a>.
+    </p>
   </dd>
 </dl><!-- net/http -->
 
@@ -915,6 +943,14 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
       Newlines characters are now allowed inside action delimiters,
       permitting actions to span multiple lines.
     </p>
+
+    <p><!-- CL 243938 -->
+      The new <a href="/pkg/text/template/#ParseFS"><code>template.ParseFS</code></a>
+      function and <a href="/pkg/text/template/#Template.ParseFS"><code>template.Template.ParseFS</code></a>
+      method are like <a href="/pkg/text/template/#ParseGlob"><code>template.ParseGlob</code></a>
+      and <a href="/pkg/text/template/#Template.ParseGlob"><code>template.Template.ParseGlob</code></a>,
+      but read the templates from an <a href="/pkg/io/fs/#FS"><code>fs.FS</code></a>.
+    </p>
   </dd>
 </dl><!-- text/template -->