update documentation (table sorting, go mod and v6.0.0++)

README.md

@@ -101,22 +101,11 @@ BenchmarkTable_RenderHTML-2       	   88633	     13425 ns/op	    4080 B/op
 BenchmarkTable_RenderMarkdown-2   	  107420	     10991 ns/op	    2560 B/op	      44 allocs/op
 ```
 
-## A note about v6.0.0 and above ...
-
-To make `go-pretty` completely compatible with `go mod`, versions `v6.0.0` and
-above will include changes that are known to break `dep` support. As far as I
-can tell, `dep` is looking for funding right now and is not being actively
-developed or maintained and has an interoperability issue with how `go mod`
-deals with package versioning.
-
-If you want to continue to use `dep`, versions `v5.1.x` and below should
-continue to work. If `dep` maintainers can merge the code proposed in
-[PR#1963](https://github.com/golang/dep/pull/1963), it should make `v6.0.0` and
-above usable too. Given that the PR has not been merged since July 2018, I am
-not too hopeful. :disappointed:
-
-To use `v6.0.0` (or newer version) of this library, you'd have to modify the
-import paths from something like:
+## v6.0.0++
+
+If you are using a version of this library older than `v6.0.0` and want to move
+to a newer version of this library, you'd have to modify the import paths from
+something like:
 ```golang
     "github.com/jedib0t/go-pretty/list"
     "github.com/jedib0t/go-pretty/progress"

table/README.md

@@ -284,6 +284,18 @@ to get:
 +-----+------------+-----------+--------+-----------------------------+
 ```
 
+## Sorting
+
+Sorting can be done on one or more columns. The following code will make the
+rows be sorted first by "First Name" and then by "Last Name" (in case of similar
+"First Name" entries).
+```golang
+    t.SortBy([]table.SortBy{
+	    {Name: "First Name", Mode: table.Asc},
+	    {Name: "Last Name", Mode: table.Asc},
+    })
+```
+
 ## Wrapping (or) Row/Column Width restrictions
 
 You can restrict the maximum (text) width for a Row: