Adds morning warmup to practice power poses

common-content/en/energisers/confident-presenting/index.md

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+title="Confident Presenting!"
+time=15
+[objectives]
+    1="Trainee can strike a power pose"
+    2="Trainee has experience with confidently introducing themselves"
+[build]
+  render = 'never'
+  list = 'local'
+  publishResources = false
++++
+
+# The Setup
+
+Get everyone standing for this exercise!
+
+1. Start off by everyone demonstrating unconfident poses
+2. Get everyone moving with a quick stretch or power pose to break the ice and release tension. 
+ - Superman pose – feet shoulder-width apart, hands on hips, chest out.
+ - The victor - hands up in the air in a V and feet apart
+ - Any others
+
+3. In a power pose of your chosing go around the room and ask everyone to say their name in the most exaggerated, enthusiastic way possible, like they’re introducing themselves to a stadium of people. 
+
+# Resources on Confident Presenting
+- [Ted Talk: Your body language may shape who you are](https://www.ted.com/talks/amy_cuddy_your_body_language_may_shape_who_you_are)
+- [Make Body Language Your Superpower](https://www.youtube.com/watch?v=cFLjudWTuGQ&ab_channel=StanfordGraduateSchoolofBusiness)
+- [Alter Ego: How having an alter ego empowers you](https://www.bbc.com/worklife/article/20200817-the-batman-effect-how-having-an-alter-ego-empowers-you)