Update to the main body of the documentation (excluding GW-specifics)

• Adds detailed API for all the samplers
• Fix bugs elsewhere

bilby/core/sampler/cpnest.py

@@ -10,11 +10,11 @@ class Cpnest(NestedSampler):
 
     All positional and keyword arguments (i.e., the args and kwargs) passed to
     `run_sampler` will be propagated to `cpnest.CPNest`, see documentation
-    for that class for further help. Under Keyword Arguments, we list commonly
+    for that class for further help. Under Other Parameters, we list commonly
     used kwargs and the bilby defaults.
 
-    Keyword Arguments
-    -----------------
+    Other Parameters
+    ----------------
     nlive: int
         The number of live points, note this can also equivalently be given as
         one of [npoints, nlives, n_live_points]