Fix app-template Chart links (#29827)

**Description**
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⚒️ Fixes  # <!--(issue)-->
-Fix App-template Chart.yaml url links

**⚙️ Type of change**

- [ ] ⚙️ Feature/App addition
- [ ] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code

**🧪 How Has This Been Tested?**
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**✔️ Checklist:**

- [ ] ⚖️ My code follows the style guidelines of this project
- [ ] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [x ] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [ ] ⬆️ I increased versions for any altered app according to semantic
versioning
- [ ] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):` or `chore(chart-name):`

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

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website/src/content/docs/development/chart-yaml-structure.md

@@ -3,7 +3,7 @@ title: Chart.yaml layout
 ---
 
 At TrueCharts we try to keep some files standardized, this enables us to make changes to these charts in bulk with less risk of mistakes. Chart.yaml is one of these files.
-In this documentation we will explain the standardized layout options. For an example layout, please see our standard Chart.yaml [template](https://github.com/truecharts/charts/blob/master/templates/chart/Chart.yaml)
+In this documentation we will explain the standardized layout options. For an example layout, please see our standard Chart.yaml [template](https://github.com/truecharts/public/blob/master/charts/premium/app-template/Chart.yaml)
 
 ## Layout Explained
 
@@ -45,7 +45,7 @@ annotations:
 
 In the above description there are a lot of values that are not actually used. Some of those, like `deprecated`, we just set to false. While others, like `annotations` get commented out.
 
-Please refer to our standard Chart.yaml [template](https://github.com/truecharts/charts/blob/master/templates/chart/Chart.yaml) to see which unused values needs which treatment.
+Please refer to our standard Chart.yaml [template](https://github.com/truecharts/public/blob/master/charts/premium/app-template/Chart.yaml) to see which unused values needs which treatment.
 
 ### Dependencies
 
@@ -56,4 +56,4 @@ All other dependencies are expected to be listed in alphabetical order.
 ### Maintainers
 
 The only maintainer should always be TrueCharts, as the TrueCharts core team is expected to step in if the other maintainers fail to maintain their work.
-An example of how to list TrueCharts as a maintainer is available in our standard Chart.yaml [template](https://github.com/truecharts/charts/blob/master/templates/chart/Chart.yaml).
+An example of how to list TrueCharts as a maintainer is available in our standard Chart.yaml [template](https://github.com/truecharts/public/blob/master/charts/premium/app-template/Chart.yaml).