Merge pull request #5605 from jkmartindale/readme-typos

Fix a couple README typos

README.md

@@ -38,14 +38,14 @@ node src/drivers/npm/cli.js https://example.com
 
 ### Chrome extension
 
-* Go go `about:extensions`
+* Go to `about:extensions`
 * Enable 'Developer mode'
 * Click 'Load unpacked'
 * Select `src/drivers/webextension`
 
 ### Firefox extension
 
-* Go go `about:debugging#/runtime/this-firefox`
+* Go to `about:debugging#/runtime/this-firefox`
 * Click 'Load Temporary Add-on'
 * Select `src/drivers/webextension/manifest.json`
 
@@ -247,7 +247,7 @@ Plus any of:
       <td>String | Array</td>
       <td>
         The presence of one application can imply the presence of
-        another, e.g. WordpPress means PHP is also in use.
+        another, e.g. WordPress means PHP is also in use.
       </td>
       <td><code>"PHP"</code></td>
     </tr>