patch 8.0.1764: lgtm considers tutor.es to be EcmaScript

Problem:    Lgtm considers tutor.es to be EcmaScript.
Solution:   Add a config file for lgtm. (Bas van Schaik, closes #2844)
diff --git a/.lgtm.yml b/.lgtm.yml
new file mode 100644
index 0000000..abe9ff6
--- /dev/null
+++ b/.lgtm.yml
@@ -0,0 +1,4 @@
+# Format of this file: https://lgtm.com/help/lgtm/lgtm.yml-configuration-file
+path_classifiers:
+  documentation:
+    - runtime/tutor/tutor*
diff --git a/Filelist b/Filelist
index 928d963..205c077 100644
--- a/Filelist
+++ b/Filelist
@@ -4,6 +4,7 @@
 # source files for all source archives
 SRC_ALL =	\
 		.hgignore \
+		.lgtm.yml \
 		.travis.yml \
 		appveyor.yml \
 		src/appveyor.bat \
diff --git a/src/version.c b/src/version.c
index f5d4c5a..f918ac2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1764,
+/**/
     1763,
 /**/
     1762,