Add Rust to list of integrations on the website (#1623)

* Add Rust to list of integrations on the website

... as discussed here: dhall-lang/dhall-lang#868 (comment)

* Fix SHA256 hash for URL

Author: Gabriella439

dhall-try/index.html

@@ -154,6 +154,8 @@
               <a class="nav-link" href="https://github.com/dhall-lang/dhall-haskell/tree/master/dhall-nix"><img src = "./img/nix-logo.png" height="32px" alt="Nix logo"><span>Nix</span></a>
               <div class="dropdown-divider"></div>
               <a class="nav-link" href="https://git.sr.ht/~singpolyma/dhall-ruby"><img src = "./img/ruby-logo.svg" height="32px" alt="Ruby logo"><span>Ruby</span></a>
+              <div class="dropdown-divider"></div>
+              <a class="nav-link" href="https://github.com/Nadrieril/dhall-rust"><img src = "./img/rust-logo.svg" height="32px" alt="Rust logo"><span>Rust</span></a>
             </div>
           </li>
           <li class="nav-item">

nix/shared.nix

@@ -53,6 +53,12 @@ let
           sha256 = "1yvvdqcmgpa75y7px3isi4x6690iksq52ilnbslhn7mcngikw6m9";
         };
 
+      rust =
+        pkgsNew.fetchurl {
+          url    = "http://rust-lang.org/logos/rust-logo-128x128-blk.png";
+          sha256 = "19ycf7ra6pn6gvavpfg1gbi9j8dsmxfm0gnczabvpspv7yaf8i71";
+        };
+
       dhallLarge =
         pkgsNew.fetchurl {
           url    = "https://raw.githubusercontent.com/dhall-lang/dhall-lang/28f4fb830f158bba6bb635bd29f1fd7075501b8f/img/dhall-logo.svg";

nix/website.nix

@@ -23,6 +23,7 @@ runCommand "try-dhall" {} ''
   ${coreutils}/bin/ln --symbolic ${logo.bash} $out/img/bash-logo.png
   ${coreutils}/bin/ln --symbolic ${logo.clojure} $out/img/clojure-logo.svg
   ${coreutils}/bin/ln --symbolic ${logo.ruby} $out/img/ruby-logo.svg
+  ${coreutils}/bin/ln --symbolic ${logo.rust} $out/img/rust-logo.svg
   ${coreutils}/bin/ln --symbolic ${logo.discourse} $out/img/discourse-logo.svg
   ${coreutils}/bin/ln --symbolic ${logo.dhallLarge} $out/img/dhall-large-logo.svg
   ${coreutils}/bin/ln --symbolic ${logo.dhallSmall} $out/img/dhall-small-logo.svg