[docs] small updates to instructions

CONTRIBUTING.md

@@ -8,6 +8,6 @@ We appreciate contributions from the community! Some of the ways to contribute a
 
 Although the GAP Benchmark Suite only specifies 6 graph kernels, we are open to adding more non-benchmark kernels to this repo. It is our goal to provide a set of portable high-performance baselines, so naturally there are plenty of remaining graph problems (e.g. MST, SCC, ALS, etc...).
 
-For code contributions, please focus on code simplicity and readability. This repo follows nearly all of the [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html). If you open a pull request, our continuous-integration service run by Travis will do an immediate sanity-check.
+For code contributions, please focus on code simplicity and readability. This repo follows nearly all of the [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html). If you open a pull request, our continuous-integration service run by GitHub Actions will do an immediate sanity-check.
 
-Before embarking on a large development task, feel to open an issue or email (sbeamer@lbl.gov) to ensure you are on a profitable path.
+Before embarking on a large development task, feel to open an issue or email (sbeamer@ucsc.edu) to ensure you are on a profitable path.

README.md

@@ -12,7 +12,7 @@ Kernels Included
 + PageRank (PR) - iterative method in pull direction
 + Connected Components (CC) - Afforest & Shiloach-Vishkin
 + Betweenness Centrality (BC) - Brandes
-+ Triangle Counting (TC) - Order invariant with possible relabelling
++ Triangle Counting (TC) - order invariant with possible degree relabelling
 
 
 Quick Start
@@ -24,7 +24,7 @@ Build the project:
 
 Override the default C++ compiler:
 
-    $ CXX=g++-8 make
+    $ CXX=g++-13 make
 
 Test the build: