Update README.md (#21326)

* Update README.md

* updates

Author: saharjs

README.md

@@ -87,11 +87,11 @@ Building Julia requires 1.5GiB of disk space and approximately 700MiB of virtual
 
 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.
 
-If you need to build Julia in an environment that does not allow access to the outside world, 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`.
+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`.
 
-**Note:** the build process will fail badly if any of the build directory's parent directories have spaces or other shell meta-characters such as `$` or `:` in their names (this is due to a limitation in GNU make).
+**Note:** The build process will fail badly if any of the build directory's parent directories have spaces or other shell meta-characters such as `$` or `:` in their names (this is due to a limitation in GNU make).
 
-Once it is built, you can run the `julia` executable using its full path in the directory created above (the `julia` directory), or, to run it from anywhere, either
+Once it is built, you can run the `julia` executable using its full path in the directory created above (the `julia` directory). To run julia from anywhere you can:
 - add an alias (in `bash`: `echo "alias julia='/path/to/install/folder/bin/julia'" >> ~/.bashrc && source ~/.bashrc`), or
 - add a soft link to the `julia` executable in the `julia` directory to `/usr/local/bin` (or any suitable directory already in your path), or
 
@@ -106,13 +106,11 @@ Now you should be able to run Julia like this:
 
     julia
 
-If everything works correctly, you will see a Julia banner and an interactive prompt into which you can enter expressions for evaluation. (Errors related to libraries might be caused by old, incompatible libraries sitting around in your PATH. In that case, try moving the `julia` directory earlier in the PATH).
+If everything works correctly, you will see a Julia banner and an interactive prompt into which you can enter expressions for evaluation. (Errors related to libraries might be caused by old, incompatible libraries sitting around in your PATH. In this case, try moving the `julia` directory earlier in the PATH).
 
-Your first test of Julia should be to determine whether your
-build is working properly. From the UNIX/Windows command prompt inside
-the `julia` source directory, type `make testall`. You should see output
-that lists a series of tests being run; if they complete without
-error, you should be in good shape to start using Julia.
+Your first test of Julia determines whether your build is working properly. From the UNIX/Windows command prompt inside
+the `julia` source directory, type `make testall`. You should see output that lists a series of running tests;
+if they complete without error, you should be in good shape to start using Julia.
 
 You can read about [getting started](https://docs.julialang.org/en/stable/manual/getting-started/) in the manual.