diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..acb5d73
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,36 @@
+{
+  "cSpell.enabled": true,
+  "cSpell.words": [
+    "AWGN",
+    "bandpass",
+    "Bitstream",
+    "BPSK",
+    "braket",
+    "DBPSK",
+    "DPSK",
+    "ELEC",
+    "ENGT",
+    "Ergodicity",
+    "formualas",
+    "infty",
+    "mathbb",
+    "mathbf",
+    "mathfrak",
+    "Mesiya",
+    "Mpolar",
+    "Munipolar",
+    "Narrowband",
+    "Nyquist",
+    "OQPSK",
+    "Overmodulation",
+    "Parseval's",
+    "QPSK",
+    "Quantizer",
+    "Signum",
+    "sinc",
+    "SQNR",
+    "Sunde's",
+    "textbf",
+    "Wideband"
+  ]
+}
diff --git a/README.md b/README.md
index 1d030ce..953e988 100644
--- a/README.md
+++ b/README.md
@@ -1085,7 +1085,7 @@ Input has probability distribution $p_X(a_i)=P(X=a_i)$
 
 Channel maps alphabet $`\{a_1,\dots,a_M\} \to \{b_1,\dots,b_N\}`$
 
-Output has probabiltiy distribution $p_Y(b_j)=P(y=b_j)$
+Output has probability distribution $p_Y(b_j)=P(y=b_j)$
 
 ```math
 \begin{align*}