Replace existing activity text

Author: hollenberry

responses/add-context.md

@@ -2,10 +2,11 @@ We need to validate against the learner's pull request title. This information i
 
 We'll add the `left:` option to the gate, and set it to the pull request's title.
 
-Activity:
+### :keyboard: Activity: Adding validation
+
 1. Add a `left:` option to the gate
 1. Set the gate's `left:` option to the pull request's title which is `'%payload.pull_request.title%'`.
 1. Set the gate's `operator:` to `===`
 1. Set the gate's `right:` to the title we expect which is `Add name to README`
 
-You can also accept the suggested changes below. They're in batch, so you'll have to go to Files Changed. 
+You can also accept the suggested changes below. They're in batch, so you'll have to go to Files Changed.

responses/add-response.md

@@ -1,7 +1,7 @@
 Great, we referenced a file title `welcome-text.md`, but it doesn't exist. Learning Lab automatically looks in the `responses/` directory for all content files. Let's add it.
 
-Activity: add a response
+### :keyboard: Activity: Adding a response
 
 1. In the `/responses/` folder, create a new file titled `welcome-text.md`
-1. In that file, add some content that will appear to the learner in the welcome issue. 
-1. Add an instruction for the learner to open a new PR titled "Add name to README" in which they add their name to the README file. 
+1. In that file, add some content that will appear to the learner in the welcome issue.
+1. Add an instruction for the learner to open a new PR titled "Add name to README" in which they add their name to the README file.

responses/publish.md

@@ -1,9 +1,9 @@
-Your course is now complete! Let's publish it. 
+Your course is now complete! Let's publish it.
 
-Activity: Publish your course
+### :keyboard: Activity: Publish your course
 
 1. Merge this PR.
-1. Confirm that you are an owner of the **{{ owner }}** organization, or a member of a team named **lab-assistants** in the **{{ owner }}** organization. 
+1. Confirm that you are an owner of the **{{ owner }}** organization, or a member of a team named **lab-assistants** in the **{{ owner }}** organization.
 1. Navigate to https://lab-sandbox.github.com/{{ owner }}/new.
 1. In the Repository name field, type in **{{ repo }}**
-1. We recommend selecting **Private** so you can test the course with other members of the organization before making it public. 
+1. We recommend selecting **Private** so you can test the course with other members of the organization before making it public.

responses/respond-success.md

@@ -1,11 +1,12 @@
 When your learner is successful, gates let the actions that follow execute.
 
-Let's respond to the learner letting them know they've completed our course upon successfully open the PR with a proper title. 
+Let's respond to the learner letting them know they've completed our course upon successfully open the PR with a proper title.
+
+### :keyboard: Activity: Responding to successful actions
 
-Activity: 
 1. In the same step, add a respond action.
 1. Add a `with:` option for the response file.
 
-We created the response file for you but feel free to change it. 
+We created the response file for you but feel free to change it.
 
-You can also accept the suggested changes below.
+You can also accept the suggested changes below.

responses/validate.md

@@ -2,6 +2,6 @@ Let's now validate the learner's PR. We asked them to title the PR "Add name to
 
 The action that will help us validate the learner's PR is a `gate`. Gates are conditionals, and they behave much like a conditional in Javascript. Let's add a `gate`, we'll specify its options in a later step.
 
-Activity: add a gate
+### :keyboard: Activity: Adding a gate
 
-1. Add a gate or accept the suggested change below. 
+1. Add a gate or accept the suggested change below.

responses/welcome.md

@@ -2,6 +2,6 @@ Welcome. There's some boilerplate in your Code tab which contains most of what y
 
 However, we need to fill in some of the fields. I've started a branch with the first changes.
 
-Activity: Open a PR for the title
+### :keyboard: Activity: Open a PR
 
-1. [Open a pull request]({{ prUrl }}) against `add-metadata`.
+1. [Open a pull request]({{ prUrl }}) against `add-metadata`.