#17. Add list-links to readme

README.md

@@ -7,6 +7,12 @@ Go library for PHP community with convenient functions
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 [![GoDoc](https://github.com/golang/gddo/blob/c782c79e0a3c3282dacdaaebeff9e6fd99cb2919/gddo-server/assets/status.svg)](https://godoc.org/github.com/arthurkushman/pgo)
 
+* [Installation](#user-content-installation)
+* [Date](#user-content-date)
+* [Strings](#user-content-strings)
+* [Files](#user-content-files)
+* [Arrays](#user-content-arrays)
+
 #### Installation 
 
 Via go get command:
@@ -16,13 +22,16 @@ go get github.com/arthurkushman/pgo
 
 Imagine that you need to write Go code every day and also have a convenient functions in memory from PHP experience
 
-#### You can use date function with similar formatting for PHP e.g.:
+### Date
+You can use date function with similar formatting for PHP e.g.:
 
 ```go
 dateStr := pgo.Date("Y-m-d H:i:s")
 ```
 
-replace sub-strings with StrReplace:
+### Strings
+
+#### replace sub-strings with StrReplace:
 ```go
 subject := "The quick brown fox jumped over the lazy dog"
 
@@ -31,7 +40,27 @@ str, err := pgo.StrReplace([]string{"fox", "dog"}, []string{"cat", "elephant"},
 // and if case-insensitive replace needed - pgo.StrIReplace([]string{"DOG", "QuiCK"}, []string{"fox", "slow"}, subject) 
 ```
 
-#### Read files with offset/limit: 
+#### Bulding a http query string:
+```go
+queryStr := pgo.HTTPBuildQuery(map[string]string{
+	"foo": "bar",
+	"bar": "baz",
+}) // bar=baz&foo=bar
+```
+
+#### Strip tags with exclusion rules:
+```go
+html := "<div>Lorem <span>ipsum dolor sit amet</span>, consectetur adipiscing elit, sed do eiusmod <a href=\"http://example.com\">tempor incididunt</a> ut labore <strong>et dolore</strong> magna aliqua.</div>"
+
+str := html.StripTags(html, []string{"a", "span"}) // results in: "Lorem <span>ipsum dolor sit amet</span>, consectetur adipiscing elit, sed do eiusmod <a href=\"http://example.com\">tempor incididunt</a> ut labore et dolore magna aliqua."
+```
+UPD: As had been stated here - https://github.com/golang/go/issues/22639
+There is a very handy "stripTags" function in html/template, then guys from official team as fast as they got dislike on their negative comment, closed the thread.
+That is why libs like `pgo` is appearing and will be move forward/evelove, bypassing strict rules that sometimes looking nonsence.
+
+### Files
+
+Read files with offset/limit:
 ```go
 content, err := pgo.FileGetContents("somefile.txt", 0, 1024)
 ```
@@ -55,24 +84,6 @@ ctx.UploadMaxFileSize = 10 << 25
 uploaded := ctx.MoveUploadedFile("foo", "/srv/images/pic123.png")
 ```
 
-#### Bulding a http query string:
-```go
-queryStr := pgo.HTTPBuildQuery(map[string]string{
-	"foo": "bar",
-	"bar": "baz",
-}) // bar=baz&foo=bar
-```
-
-#### Strip tags with exclusion rules:
-```go
-html := "<div>Lorem <span>ipsum dolor sit amet</span>, consectetur adipiscing elit, sed do eiusmod <a href=\"http://example.com\">tempor incididunt</a> ut labore <strong>et dolore</strong> magna aliqua.</div>"
-
-str := html.StripTags(html, []string{"a", "span"}) // results in: "Lorem <span>ipsum dolor sit amet</span>, consectetur adipiscing elit, sed do eiusmod <a href=\"http://example.com\">tempor incididunt</a> ut labore et dolore magna aliqua."
-```
-UPD: As had been stated here - https://github.com/golang/go/issues/22639
-There is a very handy "stripTags" function in html/template, then guys from official team as fast as they got dislike on their negative comment, closed the thread.
-That is why libs like `pgo` is appearing and will be move forward/evelove, bypassing strict rules that sometimes looking nonsence.
-
 #### Checking for file existence
 ```go
 if pgo.FileExists("file1.txt") == true {
@@ -95,6 +106,8 @@ if pgo.IsLink("someLink") {
 }
 ```
 
+### Arrays
+
 #### Check if an array contains an element
 ```go
 pgo.InArray(3, []int{1, 2, 3}) // true