make docstrings a touch more specific

docs/src/api.md

@@ -1,5 +1,6 @@
 ```@meta
 CurrentModule = MixedModelsExtras
+CollapsedDocStrings = true
 DocTestSetup = quote
     using MixedModelsExtras
 end
@@ -11,11 +12,11 @@ DocTestFilters = [r"([a-z]*) => \1", r"getfield\(.*##[0-9]+#[0-9]+"]
 ## Coefficient of Determination
 
 ```@docs
-r2
+r2(::LinearMixedModel)
 ```
 
 ```@docs
-adjr2
+adjr2(::LinearMixedModel)
 ```
 
 
@@ -25,14 +26,20 @@ adjr2
 icc
 ```
 
+## Bootstrapped Likelihood Ratio Test
+
+```@docs
+bootstrap_lrt
+```
+
 ## Variance Inflation Factor
 
 ```@docs
 vif
 ```
 
 ```@docs
-termnames
+termnames(::MixedModel)
 ```
 
 ```@docs

src/bootstrap.jl

@@ -13,7 +13,7 @@ original models is compared against this null distribution.
 !!! note
     The precision of the resulting p-value cannot exceed ``1/n``.
 
-!!! warn
+!!! warning
     This method is **not** thread safe. For efficiency , the models are modified
     during bootstrapping and the original fits are only restored at the end.