Remove wrong Windows command lines (#2357)

Windows CMD don't need fancy dots or .exe things to start programs. Moreover, running programs like ./dgraph.exe simply don't work in standard Windows command processor. Such things only work in Bash and similar consoles. Starting dgraph in the current directory like 'dgraph' works just fine in Windows, so entire Windows section don't needed.

wiki/content/get-started/index.md

@@ -59,7 +59,7 @@ looking at its output, which includes the version number.
 
 {{% notice "note" %}}Binaries for Windows are available from `v0.8.3`.{{% /notice %}}
 
-If you wish to install the binaries on Windows, you can get them from the [Github releases](https://github.com/dgraph-io/dgraph/releases), extract and install them manually. The file `dgraph-windows-amd64-v0.x.y.tar.gz` contains the dgraph binary.
+If you wish to install the binaries on Windows, you can get them from the [Github releases](https://github.com/dgraph-io/dgraph/releases), extract and install them manually. The file `dgraph-windows-amd64-v1.x.y.tar.gz` contains the dgraph binary.
 
 ## Step 2: Run Dgraph
 {{% notice "note" %}} This is a set up involving just one machine. For multi-server setup, go to [Deploy](/deploy). {{% /notice %}}
@@ -152,24 +152,6 @@ dgraph-ratel
 
 {{% notice "tip" %}}You need to set the estimated memory Dgraph server can take through `lru_mb` flag. This is just a hint to the Dgraph server and actual usage would be higher than this. It's recommended to set lru_mb to one-third the available RAM.{{% /notice %}}
 
-#### Windows
-
-
-**Run Dgraph zero**
-```sh
-./dgraph.exe zero
-```
-
-**Run Dgraph data server**
-
-```sh
-./dgraph.exe server --lru_mb 2048 --zero localhost:5080
-```
-
-```sh
-./dgraph-ratel.exe
-```
-
 ### Docker on Linux
 
 ```sh