feat: add readme content

Add a concise description of the services provided by ProFUSION,
as well as links and emails for contacts.

Closes #5

README.md

@@ -1 +1,15 @@
-# .github
+![Banner](assets/banner.gif)
+
+[![ProFUSION website](assets/badge/site.svg)](https://www.profusion.mobi)
+[![ProFUSION LinkedIn](assets/badge/likedin.svg)](https://www.linkedin.com/company/profusion-mobi/)
+[![ProFUSION Medium](assets/badge/medium.svg)](https://medium.com/profusion-engineering)
+[![ProFUSION Twitter](assets/badge/twitter.svg)](https://twitter.com/profusionembed)
+[![ProFUSION sales email](assets/badge/sales_email.svg)](mailto:sales@profusion.mobi)
+[![ProFUSION business email](assets/badge/jobs_email.svg)](mailto:jobs@profusion.mobi)
+
+
+Our developers build products that run on smartphones, internet tablets, TVs, media centers and infotainment systems.
+
+We are really full stack: mobile & web applications, servers, cloud computing platforms; low-level developments such as WebKit, Linux Kernel and userspace.
+
+We're flexible to our customer's needs. Software development contracts are usually about time & materials (if open scope, then a team is allocated to work on tasks defined as the project evolves) or closed scope (if requirements are well defined and will not change during the project execution).