doc: add emissary introduction

doc/README.md

@@ -8,13 +8,15 @@
 
 ## References
 
-### Specifications
+### API
 
-- [Schéma `app.emissary.cadoles.com`](../internal/agent/controller/app/spec/schema.json)
+[See `misc/rest/server.rest`](../misc/rest/server.rest)
-- [Schéma `proxy.emissary.cadoles.com`](../internal/spec/proxy/schema.json)
+
-- [Schéma `mdns.emissary.cadoles.com`](../internal/agent/controller/mdns/spec/schema.json)
+### Spécifications
+
+- [Schéma `app.emissary.cadoles.com`](../internal/spec/app/schema.json)
 - [Schéma `uci.emissary.cadoles.com`](../internal/spec/uci/schema.json)
-- [Schéma `sysupgrade.openwrt.emissary.cadoles.com`](../internal/agent/controller/openwrt/spec/sysupgrade/schema.json)
+- [Schéma `gateway.emissary.cadoles.com`](../internal/spec/gateway/schema.json)
 
 ### Configuration
 

doc/tutorials/fr/first-steps.md

@@ -1,3 +1 @@
 # Premiers pas
-
-> TODO