Adds gitea link (#20)

#### 📖 Summary

- adds Gitea link in header
- adds Woodpecker / CI link in footer
- updates links in Readme. (Github removed)

#### 📑 Test Plan

> 💡 Select your test plan for the code changes.

- [x] Tested via CI pipeline
- [ ] Custom test
- [ ] No test plan

##### Details / Justification

<!-- Add your test details or justification for missing tests here. -->

#### 📚 Additional Notes

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Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #20

config/_default/menus.en.toml

@@ -30,6 +30,11 @@
   pageRef = "aboutme"
   weight = 40
 
+[[main]]
+  name = "Code"
+  url = "https://gitea.ocram85.com"
+  weight = 50
+
 
 # -- Footer Menu --
 # The footer menu is displayed at the bottom of the page, just before
@@ -50,3 +55,8 @@
   url = "https://umami.ocram85.com/share/KAk7LmbU/Blog"
   weight = 30
 
+[[footer]]
+  name = "CI"
+  url = "https://ci.ocram85.com"
+  weight = 40
+