[docs] Fix some more grammar mistakes (#609)

Author: Sean Hellum

src/components/index/WhyGitpod.tsx

@@ -241,9 +241,9 @@ const WhyGitpod = () => (
                         </div>
                         <div className="why-gitpod__text">
                             <h3>Seamless GitHub & GitLab Integration</h3>
-                            <p>Gitpod let’s you stay in the flow by blending perfectly into GitHub and GitLab. Start your workflow from there and let Gitpod beam you in a ready-to-code dev environment.</p>
-                            <p>No matter you want to fix a bug, add a feature or do a code review, Gitpod get's you started immediately.</p>
-                            <p>Read more about <a href="/docs/context-urls/">Integration.</a></p>
+                            <p>Gitpod lets you stay in the flow by blending perfectly into GitHub and GitLab. Start your workflow from there and let Gitpod beam you in a ready-to-code dev environment.</p>
+                            <p>Whether you want to fix a bug, add a feature or do a code review, Gitpod gets you started immediately.</p>
+                            <p>Read more about supported <a href="/docs/context-urls/">context URLs</a>.</p>
                         </div>
                     </div>
                 </div>
@@ -258,8 +258,8 @@ const WhyGitpod = () => (
                         </div>
                         <div className="why-gitpod__text">
                             <h3>Based on the Online IDE Theia </h3>
-                            <p>Gitpod is not just another online playground, but a full-featured dev environment, just like your local IDE.</p>
-                            <p>It includes fully-functional <strong>Linux terminals</strong>, you can install any <strong>VS Code extensions</strong> and provides all the other good features provided by <strong>Theia</strong>, the vendor neutral and highly extensible VS Code alternative, we have developed.</p>
+                            <p>Gitpod isn't just an online playground, but a full-featured dev environment, just like your local IDE and Terminal.</p>
+                            <p>It includes fully-functional Linux-based <strong>Terminals</strong>, and you can install any <strong>VS Code extensions</strong> or enjoy many other great features from <strong>Theia</strong>, the vendor neutral and highly extensible IDE framework we have developed.</p>
                             <p>Read more about <a href="/docs/ide/">Theia</a>.</p>
                         </div>
                     </div>

src/docs/index.md

@@ -5,16 +5,16 @@
 Whether you just want to hack, have code to review or feel like trying something new on
 GitHub, Gitpod launches a ready-to-code dev environment with a single click.
 
-Because Gitpod is based on OSS tech like VS Code, Docker and Kubernetes, it is familiar,
+Because Gitpod is based on OSS tech like VS Code, Docker, and Kubernetes, it is familiar,
 comprehensive, extensible, and easy to use. With deep GitHub integration, tools for
 sharing, and a focus on usability, Gitpod contains your entire dev workflow in a
 browser tab.
 
 ![](./images/gitpod-prefix.png)
 
-Unlike traditional cloud and desktop IDEs, Gitpod understands the context and prepares the
-IDE automatically. For instance, if you are creating a Gitpod workspace from a GitHub pull request,
-the IDE will open in code-review mode.
+Unlike traditional cloud and desktop IDEs, Gitpod understands the context and adjusts the
+IDE automatically. For example, if you create a Gitpod workspace from a Pull Request,
+Gitpod will open in code-review mode.
 
 Also, Gitpod workspaces are meant to be disposable. That is, you do not need to maintain anything.
 They are created when you need them, and you can forget about them when you are done. Simply go to