more search engine friendly \title in doc/codec2.pdf

.github/workflows/cmake-sm1000.yml

@@ -12,7 +12,7 @@ jobs:
     # well on Windows or Mac.  You can convert this to a matrix build if you need
     # cross-platform coverage.
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     steps:
     - uses: actions/checkout@v2

.github/workflows/cmake.yml

@@ -12,7 +12,7 @@ jobs:
     # well on Windows or Mac.  You can convert this to a matrix build if you need
     # cross-platform coverage.
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     steps:
     - uses: actions/checkout@v2

doc/codec2.tex

@@ -19,7 +19,8 @@
   \input{gitbranch.txt}
 }
 
-\title{Codec 2}
+\title{Codec 2 Algorithm Description}
+
 \author{David Rowe\\ \\ Revision: {\gitrevision} on branch: {\branch}}
 
 \begin{document}