fix some line lengths

Author: hturner

.github/README.md

@@ -36,9 +36,9 @@ repository](https://github.com/r-devel/r-dev-env) in VSCode you will be prompted
 to start the dev container.
 
 The [Local setup
-section](https://contributor.r-project.org/r-dev-env/container_setup/local_setup/localsetup/) of
-the R Dev Container Docs will walk you through the process.  Then you can work
-through the following the tutorials in the docs to learn how to use the
+section](https://contributor.r-project.org/r-dev-env/container_setup/local_setup/localsetup/) 
+of the R Dev Container Docs will walk you through the process.  Then you can 
+work through the following the tutorials in the docs to learn how to use the
 codespace for R development.
 
 More information about Dev Containers can be found in the [Microsoft

docs/tutorials/building_r.md

@@ -67,7 +67,10 @@ $TOP_SRCDIR/configure --with-valgrind-instrumentation=1
 
 <!-- markdownlint-disable MD046 -->
 !!! Note
-    The `--with-valgrind-instrumentation` option is set to 1 for effective use of valgrind. See the [Using valgrind](https://cran.r-project.org/doc/manuals/R-exts.html#Using-valgrind) section of the R-admin manual for more information.
+    The `--with-valgrind-instrumentation` option is set to 1 for effective use 
+    of valgrind. See the [Using 
+    valgrind](https://cran.r-project.org/doc/manuals/R-exts.html#Using-valgrind) 
+    section of the R-admin manual for more information.
 <!-- markdownlint-enable MD046 -->
 
 - The configure cmd prepares for building R, creating files and folders inside