Minor dev guide and screenshot img update

Author: cretz

docs/guide/develop.md

@@ -39,9 +39,11 @@ Before running the build script on Windows, you must have the prerequisites:
 * [MSVC 2015 or 2017 Build Tools](http://landinghub.visualstudio.com/visual-cpp-build-tools) installed w/ the following
   executed to put 64-bit VC compiler on the `PATH` for MSVC 2015:
   `"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64`. Or the following executed for MSVC
-  2017: `"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" amd64`.
-* Latest Qt (5.x) installed w/ `qmake.exe` on the `PATH` corresponding to the chosen MSVC version
-* Optionally, [jom.exe](https://wiki.qt.io/Jom) on the `PATH` to speed up builds
+  2017: `"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x64`.
+* Latest Qt (5.x) installed w/ `qmake.exe` on the `PATH` corresponding to the chosen MSVC version (e.g. with
+  `"C:\Qt\<version>\msvc2017_64\bin"` on the `PATH`)
+* Optionally, [jom.exe](https://wiki.qt.io/Jom) on the `PATH` to speed up builds (e.g. with
+  `"C:\Qt\Tools\QtCreator\bin"` on the `PATH`)
 * Latest [Windows 64-bit standard dist of CEF](http://opensource.spotify.com/cefbuilds/index.html#windows64_builds)
   extracted w/ `CEF_DIR` environment variable set to the base CEF extracted dir
 * This repo cloned w/ the shell at the `src` folder

docs/index.html

@@ -161,7 +161,7 @@ <h4>Autocomplete and Search</h4>
   <hr />
   <h4>Request Blocker</h4>
   <div class="feature-item">
-    <img src="img/screenshot-request-blocker-simple.png" style="height: 100%;">
+    <img src="img/screenshot-request-blocker-simple.png" style="height: 100%; max-width: 100%">
     <div>
       <div>
         Doogie supports the <a href="https://adblockplus.org/filters">Adblock Plus filter syntax</a> for URLs. This means you can add <a href="https://filterlists.com/">filter lists</a> and Doogie will prevent the URL from being loaded.