Give code formatting example in Issue templates

Author: cjbj

.github/ISSUE_TEMPLATE/bug_report.md

@@ -25,7 +25,7 @@ Use Markdown syntax, see https://help.github.com/github/writing-on-github/basic-
 
 Give your database version.
 
-Also run node and show the output of:
+Also run Node.js and show the output of:
 
     process.platform
     process.version
@@ -55,6 +55,10 @@ Include all SQL needed to create the database schema.
 
 Use a gist for long code: see https://gist.github.com/
 
-Format code by using three backticks on a line before and after code snippets.
+Format code by using three backticks on a line before and after code snippets, for example:
+
+```
+const oracledb = require('oracledb');
+```
 
 -->

.github/ISSUE_TEMPLATE/general-questions-and-runtime-problems.md

@@ -47,6 +47,10 @@ Include all SQL needed to create the database schema.
 
 Use a gist for long code: see https://gist.github.com/
 
-Format code by using three backticks on a line before and after code snippets.
+Format code by using three backticks on a line before and after code snippets, for example:
+
+```
+const oracledb = require('oracledb');
+```
 
 -->

.github/ISSUE_TEMPLATE/installation-questions.md

@@ -47,7 +47,7 @@ Also run node and show the output of:
 
 3. Are you installing into vanilla Node.js, or using something like Electron?
 
-4. Show the directory listing where your Oracle client libraries are installed (e.g. the Instant Client directory).  Is it 64-bit or 32-bit?
+4. Show the directory listing where your Oracle Client libraries are installed (e.g. the Instant Client directory).  Is it 64-bit or 32-bit?
 
 5. Show what the `PATH` environment variable (on Windows) or `LD_LIBRARY_PATH` (on Linux) are set to?