feat(about): add information like, age, living place and Swiss permit

Refs: #3

assets/yaml/about.yml

@@ -2,11 +2,12 @@
 # about_title: About Me (Use this to override)
 about_profile_image: me.jpg
 about_content: > # this will include new lines to allow paragraphs
-  Hi, my name’s David. 
+  Hi, my name’s David, I'm 30 and I live in Annecy (France).
   I'm Web Developer. 
   My experience has allowed me to acquire solid knowledge in development, but not only. 
   Whatever programming language is used, 
   my knowledge of software engineering allows me to put into practice, 
   with rigor, the best development practices. 
   Curious by nature and self-taught I like to follow the new technologies news. 
   Continuous learning is an indispensable thing for me, both professionally and personally.
+  <p><b>Swiss work permit G (valid until /07/2021)</b></p>