[DOC] Added more tutorials

docs/installation/from-source.rst

@@ -1,3 +1,21 @@
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 From Source
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+***************
+
+Triton is a fairly self-contained package and uses its own parser (forked from `wgtcc <https://github.com/wgtdkp/wgtcc>`_) and LLVM-8.0+ for code generation. 
+
+.. code-block:: bash
+
+    sudo apt-get install llvm-8-dev
+    git clone https://github.com/ptillet/triton.git;
+    cd triton/python/;
+    python setup.py develop;
+
+This should take about 15-20 seconds to compile on  a modern machine.
+
+You can then test your installation by running the *einsum.py* example in an environment that contains pytorch:
+
+.. code-block:: bash
+
+    cd examples;
+    python einsum.py