Improve docs (#117)

Author: Tortar

docs/make.jl

@@ -12,9 +12,9 @@ makedocs(
         "StreamSampling.jl" => "index.md",
         "Basics" => "basics.md",
         "An Illustrative Example" => "example.md",
-        "API" => "api.md",
         "Performance Tips" => "perf_tips.md", 
-        "Benchmarks" => "benchmark.md"
+        "Benchmarks" => "benchmark.md",
+        "API" => "api.md",
     ],
     warnonly = [:doctest, :missing_docs, :cross_references],
 )

docs/src/index.md

@@ -1,10 +1,17 @@
 
-# StreamSampling.jl
+# Introduction
 
 ```@docs
 StreamSampling
 ```
 
+## Installation
+
+```julia
+using Pkg
+Pkg.add("StreamSampling")
+```
+
 ## Reproducibility
 
 ```@raw html

docs/src/perf_tips.md

@@ -26,11 +26,11 @@ iter = 1:10^7;
 Running with both version we get
 
 ```@example 1
-@btime fit_iter!(rs, $iter) setup=(rs = ReservoirSampler{Int}(10, AlgRSWRSKIP(); mutable = true))
+@btime fit_iter!(rs, $iter) setup=(rs = ReservoirSampler{Int}(10, AlgRSWRSKIP(); mutable = true));
 ```
 
 ```@example 1
-@btime fit_iter!(rs, $iter) setup=(rs = ReservoirSampler{Int}(10, AlgRSWRSKIP(); mutable = false))
+@btime fit_iter!(rs, $iter) setup=(rs = ReservoirSampler{Int}(10, AlgRSWRSKIP(); mutable = false));
 ```
 
 As you can see, the immutable version is 50% faster than