Fix .readthedocs.yml

.readthedocs.yaml

@@ -2,20 +2,31 @@ version: 2
 
 build:
   os: ubuntu-22.04
+  apt_packages:
+    - autoconf
+    - automake
+    - libtool
+    - make
+    - libevent-dev
+    - libssl-dev
+    - flex
+    - bison
+    - mandoc
   tools:
     python: "3"
+  jobs:
+    pre_build:
+      - |
+        autoconf && autoheader
+        ./configure --with-libevent=yes --with-libssl=yes
+        make html
 
 sphinx:
-  configuration: source/conf.py
+  configuration: doc/manual/conf.py
 
 python:
   install:
-    - requirements: requirements.txt
-
-# Build PDF & ePub
-formats:
-  - epub
-  - pdf
+    - requirements: doc/manual/requirements.txt
 
 submodules:
   include: all