Remove old version information from README (JuliaLang#28533)

Author: HarrisonGrodin

README.md

@@ -84,16 +84,16 @@ Then, acquire the source code by cloning the git repository:
 
 Be sure to also configure your system to use the appropriate proxy settings, e.g. by setting the `https_proxy` and `http_proxy` variables.)
 
-By default you will be building the latest unstable version of Julia. However, most users should use the most recent stable version of Julia, which is currently the `0.6` series of releases. You can get this version by changing to the Julia directory and running
+By default you will be building the latest unstable version of Julia. However, most users should use the most recent stable version of Julia, which is currently the `1.0` series of releases. You can get this version by changing to the Julia directory and running
 
-    git checkout v0.6.4
+    git checkout v1.0.0
 
 Now run `make` to build the `julia` executable. To perform a parallel build, use `make -j N` and supply the maximum number of concurrent processes. (See [Platform Specific Build Notes](https://github.com/JuliaLang/julia#platform-specific-build-notes) for details.)
 When compiled the first time, it will automatically download and build its [external dependencies](#required-build-tools-and-external-libraries).
 This takes a while, but only has to be done once. If the defaults in the build do not work for you, and you need to set specific make parameters, you can save them in `Make.user`, and place the file in the root of your Julia source. The build will automatically check for the existence of `Make.user` and use it if it exists.
 Building Julia requires 5GiB of disk space and approximately 2GiB of virtual memory.
 
-For builds of julia starting with 0.5.0-dev, you can create out-of-tree builds of Julia by specifying `make O=<build-directory> configure` on the command line. This will create a directory mirror, with all of the necessary Makefiles to build Julia, in the specified directory. These builds will share the source files in Julia and `deps/srccache`. Each out-of-tree build directory can have its own `Make.user` file to override the global `Make.user` file in the top-level folder.
+You can create out-of-tree builds of Julia by specifying `make O=<build-directory> configure` on the command line. This will create a directory mirror, with all of the necessary Makefiles to build Julia, in the specified directory. These builds will share the source files in Julia and `deps/srccache`. Each out-of-tree build directory can have its own `Make.user` file to override the global `Make.user` file in the top-level folder.
 
 If you need to build Julia on a machine without internet access, use `make -C deps getall` to download all the necessary files. Then, copy the `julia` directory over to the target environment and build with `make`.