[kissmanga][readcomiconline] add 'captcha' option (#279)

to configure how to handle CAPTCHA page redirects:
- either interactively wait for the user to solve the CAPTCHA
- or raise StopExtraction like before

docs/configuration.rst

@@ -593,6 +593,18 @@ Description Controls whether to choose the GIF or MP4 version of an animation.
 =========== =====
 
 
+extractor.kissmanga.captcha
+---------------------------
+=========== =====
+Type        ``string``
+Default     ``"stop"``
+Description Controls how to handle redirects to CAPTCHA pages.
+
+            * ``"stop``: Stop the current extractor run.
+            * ``"wait``: Ask the user to solve the CAPTCHA and wait.
+=========== =====
+
+
 extractor.oauth.browser
 -----------------------
 =========== =====
@@ -646,6 +658,18 @@ Description Minimum and maximum wait time in seconds between HTTP requests
 =========== =====
 
 
+extractor.readcomiconline.captcha
+---------------------------------
+=========== =====
+Type        ``string``
+Default     ``"stop"``
+Description Controls how to handle redirects to CAPTCHA pages.
+
+            * ``"stop``: Stop the current extractor run.
+            * ``"wait``: Ask the user to solve the CAPTCHA and wait.
+=========== =====
+
+
 extractor.recursive.blacklist
 -----------------------------
 =========== =====

docs/gallery-dl.conf

@@ -62,6 +62,10 @@
         {
             "mp4": true
         },
+        "kissmanga":
+        {
+            "captcha": "stop"
+        },
         "nijie":
         {
             "username": null,
@@ -82,6 +86,10 @@
             "wait-min": 3.0,
             "wait-max": 6.0
         },
+        "readcomiconline":
+        {
+            "captcha": "stop"
+        },
         "recursive":
         {
             "blacklist": ["directlink", "oauth", "recursive", "test"]