docs/content/quickstart.md: Updating the quickstart.md to correspond better with the README.md

Author: andrewdavidsmith

docs/content/quickstart.md

@@ -50,19 +50,17 @@ would need to be activated when you want to use dnmtools.
 
 ### Required libraries
 
-* A recent compiler: most users will be building and installing this
+* A recent compiler. Most users will be building and installing this
   software with GCC. We require a compiler that fully supports C++17,
-  so we recommend using at least GCC 8 (released in 2018). There are
+  so we recommend using at least GCC 9 (released in 2019). There are
   still many systems that install a very old version of GCC by
   default, so if you have problems with building this software, that
-  might be the first thing to check. On macOS and Ubuntu/Debian
-  systems, the brew and apt package managers can get you a recent
-  compiler easily. Any cluster or high-performance computing
-  environment should give you access to a recent compiler.
-* The GNU Scientific Library: this has always been required. It can be
-  installed using apt on Linux (Ubuntu, Debian), using brew on macOS,
-  or from source available [here](http://www.gnu.org/software/gsl).
-* The HTSlib library, which can be installed through brew on macOS,
+  might be the first thing to check. The clang LLVM compiler can
+  also be used with a recent enough version.
+* The GNU Scientific Library. It can be installed using apt on Linux
+  (Ubuntu, Debian), using brew on macOS, or from source available
+  [here](http://www.gnu.org/software/gsl).
+* The HTSlib library. This can be installed through brew on macOS,
   through apt on Linux (Ubuntu, Debian), or from source downloadable
   [here](https://github.com/samtools/htslib).
 * The Zlib compression library: Most likely you already have this
@@ -72,14 +70,14 @@ would need to be activated when you want to use dnmtools.
 
 ### Configuration
 
-* Download [dnmtools-1.4.2.tar.gz](https://github.com/smithlabcode/dnmtools/releases/download/v1.4.2/dnmtools-1.4.2.tar.gz).
+* Download [dnmtools-1.4.3.tar.gz](https://github.com/smithlabcode/dnmtools/releases/download/v1.4.3/dnmtools-1.4.3.tar.gz).
 * Unpack the archive:
 ```console
-$ tar -zxvf dnmtools-1.4.2.tar.gz
+$ tar -zxvf dnmtools-1.4.3.tar.gz
 ```
 * Move into the dnmtools directory and create a build directory:
 ```console
-$ cd dnmtools-1.4.2
+$ cd dnmtools-1.4.3
 $ mkdir build && cd build
 ```
 * Run the configuration script:
@@ -119,25 +117,21 @@ $ export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/path/to/htslib/lib
 To test if everything was successful, simply run `dnmtools` without
 any arguments and you should see the list of available commands:
 ```console
-$ dnmtools
+dnmtools
 ```
-If you want to do more extensive tests, you can run:
+There is a test suite for `dnmtools` and these test can be performed
+as follows:
 ```console
-$ make check
+make check
 ```
-from the directory where you run `make`. This will to several tests of
-various commands within `dnmtools`, and might take some time.
+This must be done from the build directory. Note that the tests
+performed with `make check` are mostly regression tests that cover
+prior issues rather than coverage tests to test all the functionality
+of `dnmtools`.
 
 ## Using a clone of the repo
 
-*This option is deprecated; we are no longer maintaining a Makefile
-that is not generated by `./configure`.* Not recommended, but if you
-want to do it this way, we assume you know what you are doing. We
-strongly recommend using dnmtools through the latest stable release
+We strongly recommend using dnmtools through the latest stable release
 under the releases section on GitHub. Developers who wish to work on
-the latest commits, which are unstable, can compile the source using
-the `Makefile` available in the root of the source tree. If HTSLib and
-other libraries are available system-wide, compile by running:
-```console
-$ make
-```
+the latest commits, which are unstable, can start the process using
+the `autogen.sh` script and then using the usual autotools approach.